RNS Number:0141S
Marconi Corporation PLC
13 November 2003


MARCONI CORPORATION PLC
CONSOLIDATED PROFIT AND LOSS ACCOUNT
                                           6            6
                                      months       months         Year
                                          to           to           to
                                          30           30           31
                                   September    September        March
# million                  Note         2003         2003         2003
TURNOVER
Continuing operations         3          756        1,019        1,914
Discontinued operations       3            -           87           88
Group                         2          756        1,106        2,002
                                  ----------   ----------   ----------
OPERATING LOSS
Group operating loss
Excluding goodwill                       (67)        (231)        (308)
amortisation and
exceptional items
Goodwill amortisation                    (49)         (54)        (104)
Operating exceptional      4a            (33)        (206)        (317)
items
                              3         (149)        (491)        (729)
Continuing operations                   (149)        (485)        (723)
Discontinued operations                    -           (6)          (6)
                              3         (149)        (491)        (729)
Share of operating loss of
joint ventures
Excluding goodwill                        (2)          (4)          (8)
amortisation and
exceptional items
Operating exceptional      4a              -          (32)         (32)
items
                                          (2)         (36)         (40)
                                   ---------    ---------    ---------
                                        (151)        (527)        (769)
Share of operating loss of
associates
Excluding goodwill                        (6)         (17)         (27)
amortisation and
exceptional items
Goodwill amortisation                     (5)          (5)         (10)
Goodwill impairment                        -          (27)         (27)
Operating exceptional      4b              -          (18)         (25)
items
                                         (11)         (67)         (89)
                                   ---------    ---------    ---------
Total operating loss          2         (162)        (594)        (858)

Non-operating exceptional
items
Gain / loss on disposal of 4c              9           (5)          (5)
discontinued operations
Gain on disposal of        4c             76            -            -
associates
Gain on disposal of fixed  4c             18           31           26
assets and investments in
continuing operations
Merger/demerger items                      -            -          123
Group share of associates' 4c              -           (3)          (3)
non-operating exceptional
items
                                         103           23          141
Amounts revalued/(written  4d              1          (40)         (40)
off) investments
Gain / (loss) on waiver of 4e             25         (186)        (315)
balance payable to Marconi
plc group

Net interest payable
Group                         5          (20)        (120)        (242)
Share of joint ventures       5            -            1            -
and associates
                              5          (20)        (119)        (242)

Net finance (expenditure)     6          (47)           2          (14)
/ income

LOSS ON ORDINARY
ACTIVITIES BEFORE
TAXATION
Excluding goodwill                      (142)        (369)        (599)
amortisation and
exceptional items
Goodwill amortisation and                 42         (545)        (729)
exceptional items
                              2         (100)        (914)      (1,328)
TAX CREDIT/(CHARGE) ON
LOSS ON ORDINARY
ACTIVITIES
Excluding tax on goodwill                 (6)         (10)         107
amortisation and
exceptional items
Exceptional tax credit                    20            -           78
                           7a             14          (10)         185
LOSS ON ORDINARY                         (86)        (924)      (1,143)
ACTIVITIES AFTER
TAXATION
Equity minority                            -           (1)          (1)
interests
                                   ---------    ---------    ---------
LOSS ON ORDINARY                         (86)        (925)      (1,144)
ACTIVITIES ATTRIBUTABLE TO
THE EQUITY SHAREHOLDERS
AND RETAINED LOSS FOR THE
PERIOD
                                     =======      =======      =======
Basic and diluted loss per    8        (28.8p)     (161.4p)     (199.6p)
share
Basic adjusted loss per       8        (34.2p)      (66.4p)      (86.0p)
share
                                     =======      =======      =======

MARCONI CORPORATION PLC
CONSOLIDATED BALANCE SHEET
                             30           30           30           31
                      September    September         June        March
# million     Note         2003         2003         2003         2003

FIXED
ASSETS
Goodwill                    541          672          566          597
Tangible                    192          329          209          243
assets
Investments                  23          121           57           63
                     ----------   ----------   ----------   ----------
                            756        1,122          832          903
CURRENT
ASSETS
Stocks and      10          202          356          215          234
contracts in
progress
Debtors:        11          464          803          519          581
amounts
falling due
within one
year
Debtors:        11            8           59           10           32
amounts
falling due
after more
than one
year
Cash at bank    12          772        1,062          788        1,158
and in hand
                     ----------   ----------   ----------   ----------
                          1,446        2,280        1,532        2,005

Creditors:      13         (627)      (3,611)        (666)      (5,541)
amounts
falling due
within one
year
                     ----------   ----------   ----------   ----------
NET CURRENT                 819       (1,331)         866       (3,536)
ASSETS/
(LIABILITIES)
                     ----------                             ----------
Total assets              1,575         (209)       1,698       (2,633)
less current
liabilities
Creditors:      13         (660)      (2,107)        (770)         (46)
Amounts
falling due
after more
than one
year
Provisions      14         (246)        (456)        (268)        (300)
for
liabilities
and charges
                     ----------   ----------   ----------   ----------
NET ASSETS/                 669       (2,772)         660       (2,979)
(LIABILITIES)
BEFORE
RETIREMENT
BENEFIT
DEFICITS
Retirement       1         (346)        (439)        (357)        (353)
benefit
scheme
deficits
                     ----------   ----------                ----------
NET ASSETS/                 323       (3,211)         303       (3,332)
(LIABILITIES)
AFTER
RETIREMENT
BENEFIT
DEFICITS
                       ========      =======       ======       ======
CAPITAL AND
RESERVES
Called-up     15a            50          143           50          143
share
capital
Shares to be  15b             8            -            1            -
issued
Share premium 15b             -          700            -          700
account
Capital       15b             9            9            9            9
reserve
Capital       15b           334            -          343            -
reduction
reserve
Profit and    15b           (81)      (4,072)        (102)      (4,187)
loss
account
                     ----------   ----------   ----------   ----------
Equity                      320       (3,220)         301       (3,335)
shareholders'
interests
Equity                        3            9            2            3
minority
interests
                     ----------   ----------   ----------   ----------
                            323       (3,211)         303       (3,332)
                          =====        =====        =====        =====

MARCONI CORPORATION PLC
CONSOLIDATED CASH FLOW STATEMENT
                                           6            6
                                      months       months         Year
                                          to           to           to
                                          30           30           31
                                   September    September        March
# million                  Note         2003         2002         2003
Net cash inflow/(outflow)   16a           65         (142)           8
from operating activities
before exceptional items
Exceptional cash outflows    4f         (109)        (181)        (329)
from operating
activities

Net cash outflow from
operating activities after
exceptional items
Continuing operations                    (44)        (282)        (282)
Discontinued operations                    -          (41)         (39)
                                         (44)        (323)        (321)
Returns on investments and  16b          (19)        (158)        (164)
servicing of finance
Tax (paid)/repaid           16c           (2)         (13)          31
Capital expenditure and     16d           41          (25)         (30)
financial investment
Acquisitions and            16e           98          387          433
disposals
                                  ----------   ----------   ----------
Cash inflow/(outflow)                     74         (132)         (51)
before use of liquid
resources and financing
Net cash inflow/(outflow)   16f           19          (77)        (159)
from management of liquid
resources
Cash element of Scheme      16g         (340)           -            -
consideration
Other net cash outflow      16g         (105)         (38)         (40)
from financing
                                  ----------   ----------   ----------
DECREASE IN CASH AND NET                (352)        (247)        (250)
BANK BALANCES REPAYABLE ON
DEMAND
                                     =======      =======      =======
RECONCILIATION OF NET CASH FLOW TO MOVEMENTS IN NET
MONETARY FUNDS/(DEBT)

                                           6            6
                                      months       months         Year
                                          to           to           to
                                          30           30           31
                                   September    September        March
# million                  Note         2003         2002         2003

Decrease in cash and net                (352)        (247)        (250)
bank balances repayable on
demand
Net cash (inflow)/outflow                (19)          77          159
from management of liquid
resources
Net cash outflow from                    105           38           40
decrease in debt and lease
financing
                                  ----------   ----------   ----------
Change in net monetary                  (266)        (132)         (51)
funds/(debt) resulting
from cash flows
Net debt disposed with                     -           17           24
subsidiaries
Other non-cash changes       17        3,956         (223)        (364)
Effect of foreign exchange   17           26          159          109
rate changes
                                  ----------   ----------   ----------
Movement in net monetary               3,716         (179)        (282)
funds/(debt) in the
period
Net monetary debt at 1       17       (3,617)      (3,335)      (3,335)
April
                                  ----------   ----------   ----------
Net monetary funds/(debt)    17           99       (3,514)      (3,617)
at end of period
                                      ======       ======       ======
MARCONI CORPORATION PLC
CONSOLIDATED STATEMENT OF TOTAL RECOGNISED GAINS AND LOSSES
                                           6            6
                                      months       months         Year
                                          to           to           to
                                          30           30           31
                                   September    September        March
# million                               2003         2002         2003

Loss on ordinary activities
attributable to the
shareholders
Group                                    (73)        (820)      (1,049)
Share of joint ventures                   (2)         (35)         (40)
Share of associates                      (11)         (70)         (55)
                                         (86)        (925)      (1,144)

Exchange differences on                   (1)         106          103
translation
Tax charge on exchange                     -           (3)           -
differences
Actuarial gain/(loss) recognised          14         (373)        (269)
on retirement benefit schemes
                                  ----------   ----------   ----------
TOTAL RECOGNISED GAINS AND               (73)      (1,195)      (1,310)
LOSSES
                                      ======       ======       ======

RECONCILIATION OF MOVEMENTS IN EQUITY SHAREHOLDERS' INTERESTS
                                           6            6
                                      months       months         Year
                                          to           to           to
                                          30           30           31
                                   September    September        March
# million                  Note         2003         2002         2003

Total recognised gains and               (73)      (1,195)      (1,310)
losses
Shares to be issued                        8            -            -
New share capital and        15        3,720            -            -
share premium
Group share of associates'                 -            3            3
shares to be issued
                                  ----------   ----------   ----------
Total movement in the                  3,655       (1,192)      (1,307)
period

Equity shareholders'                  (3,335)      (2,028)      (2,028)
interests at 1 April
                                  ----------   ----------   ----------
Equity shareholders'                     320       (3,220)      (3,335)
interests at end of
period
                                      ======       ======       ======

        NOTES TO THE NON-STATUTORY ACCOUNTS

 1. *ACCOUNTING POLICIES
    Financial information in the non-statutory accounts is presented on the
    basis of the UK accounting policies of Marconi Corporation plc as set out in
    the Annual Report and Accounts for the year ended 31 March 2003. The
    unaudited results for the interim period should therefore be read in
    conjunction with the Marconi Corporation plc 2003 Annual Report and
    Accounts. The financial information does not comprise statutory accounts for
    the purposes of Section 240 of the Companies Act 1985 and has not been
    audited. The balance sheet information at 31 March 2003 has been extracted
    from the Annual Report and Accounts of Marconi Corporation plc for the year
    then ended. The audit report on those accounts, which have been delivered to
    the Registrar of Companies, was unqualified and did not contain a statement
    under Section 237 (2) or (3) of the Companies Act 1985.

    Associates
    
    Associates consist of long-term investments in which the Group holds a
    participating interest and over which it exercises significant influence.
    Other than Easynet Group plc, investments in associates are stated at the
    amount of the Group's share of net assets including goodwill derived from
    audited or management accounts made up to that date. In the three months to
    30 June 2003 the results for Easynet Group plc for the six months ended 30
    June 2003 were not publicly available at the date of issue of Marconi
    Corporation plc's first quarter report. Consequently, the Group included an
    estimate of Easynet Group plc's operating losses based on 50 per cent of
    their results before exceptional items for the six months ended 31 December
    2002, being the last available reported financial information. The three
    months ended 30 June 2002 included 50 per cent of Easynet Group plc's
    operating loss and incurred operating exceptional items for the six months
    ended 31 December 2001. Exceptional items are assumed to be one off events
    and recognised when reported.

    In the three months ended 30 September 2003, Easynet plc published their
    results to 30 June 2003 and we sold our investment in Easynet plc in two
    tranches. We have estimated the results of Easynet plc to the dates of
    disposal based on the most recently published information.

    Pensions and other retirement benefits

    At 30 September 2003, an actuarial assessment of our pension schemes was
    undertaken and the following actuarial assumptions were changed for the
    Group's largest pension scheme, the UK plan.
                                                       At           At
                                                       30           31
                                                September        March
                                                     2003         2003
                                              per cent      per cent

    Rate of general increase in salaries             4.75         4.50
    Rate of increase in pension payments             2.75         2.50
    Rate of increase in deferred pensioners          2.75         2.50
    Inflation assumption                             2.75         2.50

    All other assumptions remained unchanged from 31 March 2003. The impact of
    these changes and disclosure of settlement losses in the period are
    discussed on page 36.

    Currency Translation
    Transactions denominated in foreign currencies are translated into the
    functional currency at the rates ruling at the dates of the transactions.
    Monetary assets and liabilities denominated in foreign currencies at the
    balance sheet date are retranslated at the rates ruling at that date. These
    translation differences are dealt with in the profit and loss account with
    the exception of certain gains and losses arising under hedging transactions
    in prior periods.

    Profits and losses of overseas subsidiaries, joint ventures and associates
    and cash flows of overseas subsidiaries are translated at the average rates
    of exchange during the period. Non-sterling net assets are translated at
    year-end rates of exchange. Key rates used are as follows :

                       Average rates                      Period-end rates
                      6            6
                 months       months      Year
                     to           to        to
                     30           30        31           30           30        31
              September    September     March    September    September     March
                   2003         2002      2003         2003         2002      2003

    US           1.6227       1.5204    1.5538       1.6614       1.5726    1.5807
    dollar
    Euro         1.4262       1.5813    1.5499       1.4267       1.5913    1.4486

    The differences arising from the restatement of profits and losses and the
    retranslation of the opening net liabilities to period end rates are taken
    to reserves.

 2. *SEGMENTAL ANALYSIS

        Analysis of results and net assets/(liabilities) by class of business

                    (Loss)/profit
                       before                                           Net assets/
# million                tax                 Turnover                  (liabilities)
                           6                  6
                       months                 months
                         to                     to
                        30                     30                          30         31
                        Sept                   Sept                      Sept       March
                     2003         2002         2003         2002         2003         2003

Network               (51)        (179)         480          600         )181          205
equipment
Network                17            5          276          392
services
Central               (28)         (31)           -            -
costs
Other                  (5)         (24)           -           27          (16)         (30)
               ----------   ----------   ----------   ----------   ----------   ----------
Continuing            (67)        (229)         756        1,019          165          175
operations
Discontinued            -           (2)           -           87            -            -
operations
                                             ======       ======
                      (67)        (231)         756        1,106          165          175

Goodwill              (49)         (54)                                   541          597
amortisation
Operating             (33)        (238)
exceptional
items
(note 4a)
               ----------   ----------
Group                (149)        (523)
operating
loss
Joint                  (2)          (4)                                     2            3
ventures
Associates            (11)         (67)                                    16           44

Total                (162)        (594)
operating
loss
Non-operating         103           23
exceptional
items (note
4c)
Amounts                 1          (40)
revalued/
(written off)
investments
(note 4d)
Gain on waiver         25         (186)
of balance
payable to
Marconi plc
group (note
4e)
Net interest          (20)        (119)                                   104       (3,198)
payable and
interest
bearing assets
and
liabilities
Net finance           (47)           2
expenditure

Unallocated                                                              (505)        (550)
net
liabilities
Non-interest                                                                          (403)
bearing
amounts owing
to Marconi plc
companies not
in Marconi
Corporation
plc group
               ----------   ----------   ----------   ----------   ----------   ----------
                     (100)        (914)                                   323       (3,332)
                    =====        =====                                  =====        =====

        Goodwill arising on acquisitions is amortised over a period not
        exceeding 20 years. Separate components of goodwill are identified and
        amortised over the appropriate useful economic life. The remaining
        goodwill on the balance sheet will be amortised over an average period
        of approximately 6 years. It is not practical to disclose goodwill
        amortisation on a segmental basis as any allocation would be arbitrary.

        The net assets of Network Equipment and Network Services cannot be
        separately identified as the same assets are generally used to generate
        sales in each of these segments. The results of these segments are
        separately reportable. Central costs include #9 million of share options
        (2002: #nil). Other consists of previous non-core businesses, the
        largest of which UMTS, was sold in the period.

        Sales by Group companies to joint ventures and associates amounted to
        #11 million (2002: #16 million). Purchase from joint ventures and
        associates amounted to #nil (2002: #nil).

        Certain assets and liabilities cannot be allocated by class of business
        or territory. These principally consist of taxation, retirement benefits
        and central provisions.

        The Group has historically divided its business into three segments:
        Network Equipment, Network Services and Other but is now adopting a new
        reporting structure along geographic lines. The profit/(loss) before
        taxation, turnover and total assets for the NARF and Non-NARF segments
        are disclosed for the first and second quarter. Further information to
        comply with our loan note covenants is disclosed in Notes 20.

                   (Loss)/profit
                      before                                                Net
# million               tax                    Turnover                   Assets
                      30           30           30           30           30           30
               September         June    September         June    September         June
                    2003         2003         2003         2003         2003         2003
NARF                  15            4          139          121           93           73
Non-NARF              (7)        (106)         250          246          124          120
Consolidation         (3)          (3)           -            -          106          110
adjustment
for
goodwill
              ----------   ----------   ----------   ----------   ----------   ----------
Continuing             5         (105)         389          367          323          303
operations
                   =====        =====        =====        =====        =====        =====

Analysis of turnover by class of business
                                          To
                                   customers
                                          in
                                         the                        To
                                      United                 customers
# million                            Kingdom                  overseas
6 months to 30             2003         2002         2003         2002
September

Network equipment            79          128          401          472
Network services            121          126          155          266
Other                         -            8            -           19
                     ----------   ----------   ----------   ----------
Continuing                  200          262          556          757
operations
Discontinued                  -           11            -           76
operations
                     ----------   ----------   ----------   ----------
                            200          273          556          833
                         ======       ======       ======       ======

NARF                          1                       259
Non-NARF                    199                       297
                     ----------                ----------
Continuing                  200                       556
operations
                         ======                    ======
Analysis of turnover by territory of destination
# million
6 months to 30 September                       2003               2002

United Kingdom                                  200                273
Other EMEA                                      243                387
North America                                   242                304
CALA                                             21                 43
APAC                                             50                 99
                                         ----------         ----------
                                                756              1,106
                                             ======             ======

        Analysis of operating loss before goodwill amortisation and exceptional
        items, turnover and net assets/(liabilities) be territory of origin

                 Operating                                         Net assets/)
               (loss)/profit               Turnover                (liabilities)
                    6                         6
                  months                    months
                    to                        to
                  30                        30                 30              31
#                September                 September          September      March
million
                2003         2002         2003         2002         2003         2003
UK (incl.        (25)         (64)         234          371          181          233
central
costs)
Other            (49)         (89)         228          378          (57)        (130)
EMEA
North             14          (58)         249          310           36           83
America
CALA               1            1           21           34           10            8
APAC              (8)         (21)          24           13           (5)         (19)
          ----------   ----------   ----------   ----------   ----------   ----------
                 (67)        (231)         756        1,106          165          175
               =====        =====        =====        =====        =====        =====

        North America includes some small operations which are excluded from the
        NARF, in particular the Group's wireless software and services
        activities.

 3. *GROUP OPERATING LOSS (EXCLUDING JOINT VENTURES)
                                              Exceptional
    # million                    Continuing         items        Total
    6 months to 30 September
    2003

    Turnover                            756             -          756
    Cost of sales                      (571)            6         (565)
                                 ----------    ----------   ----------
    Gross profit                        185             6          191

    Selling and distribution           (104)            -         (104)
    expenses
    Administrative expenses -           (48)          (39)         (87)
    other
    Research and development           (105)            -         (105)
    Goodwill amortisation               (49)            -          (49)
                                 ----------    ----------   ----------
    Administrative expenses -          (202)          (39)        (241)
    total
    Other operating income                5             -            5
                                 ----------    ----------   ----------
    Operating loss                     (116)          (33)        (149)
                                     ======        ======       ======
    Share option costs of #9 million are included within selling and
    distribution expenses, administrative expenses and research and development.

                                               Exceptional
    # million      Continuing   Discontinued         items        Total
    6 months to 30
    September
    2002

    Turnover            1,019             87             -        1,106
    Cost of              (842)           (63)          (24)        (929)
    sales
                   ----------     ----------    ----------   ----------
    Gross profit/         177             24           (24)         177
    (loss)

    Selling and          (152)           (11)            -         (163)
    distribution
    expenses
    Administrative        (65)            (6)         (182)        (253)
    expenses -
    other
    Research and         (182)           (11)            -         (193)
    development
    Goodwill              (51)            (3)            -          (54)
    amortisation
                   ----------     ----------    ----------   ----------
    Administrative       (298)           (20)         (182)        (500)
    expenses -
    total
    Other                  (7)             2             -           (5)
    operating
    expense
                   ----------     ----------    ----------   ----------
    Operating            (280)            (5)         (206)        (491)
    loss
                        =====         ======        ======       ======

                                               Exceptional
    # million      Continuing   Discontinued         items        Total
    Year to 31
    March 2003

    Turnover            1,914             88             -        2,002
    Cost of            (1,530)           (64)          (21)      (1,615)
    sales
                   ----------     ----------    ----------   ----------
    Gross profit          384             24           (21)         387

    Selling and          (266)           (11)            -         (277)
    distribution
    expenses
    Administrative       (107)            (6)         (296)        (409)
    expenses -
    other
    Research and         (316)           (11)            -         (327)
    development
    Goodwill             (102)            (2)            -         (104)
    amortisation
                   ----------     ----------    ----------   ----------
    Administrative       (525)           (19)         (296)        (840)
    expenses -
    total
    Other                  (1)             2             -            1
    operating
    expense
                   ----------     ----------    ----------
    Operating            (408)            (4)         (317)        (729)
    loss
                        =====          =====         =====        =====

    All exceptional items, except for #1 million in the six months ended 30
    September 2002 and #2 million in the year ended 31 March 2003 charged to
    operating expenses, relate to continuing operations.

    Exceptional items are shown in further detail in note 4.

    The Group disposed of its Strategic Communications business during the year
    ended 31 March 2003. This activity is shown as discontinued in the note
    above.

4. *EXCEPTIONAL ITEMS

These charges have been analysed as follows:

 a. *Operating exceptional items
            # million
            6 months to 30 September                         2003         2002

            Restructuring costs - included in    (i)            6          (24)
            cost of sales
                                                       ----------   ----------
            Impairment of goodwill and          (ii)            -          (31)
            tangible fixed assets
            Restructuring and reorganisation   (iii)          (43)        (166)
            costs
            System implementation costs         (iv)            -            7
            Releases in respect of doubtful      (v)            4            8
            debts
                                                       ----------   ----------
            Included in administrative                        (39)        (182)
            expenses

            Group operating exceptional                       (33)        (206)
            items
            Share of joint ventures' operating  (vi)            -          (32)
            exceptional items
                                                       ----------   ----------
            Total operating exceptional items                 (33)        (238)
            (excluding associates)
                                                            =====        =====
    i) In the six months ended 30 September 2003, #6 million was credited to
    restructuring costs within costs of sale. #5 million of this relates to the
    release of liability provisions held against the outsourcing of certain
    manufacturing operations to Jabil Circuit Inc and #1 million received on
    account for stock, previously fully provided for through an exceptional
    charge, and subsequently utilised by Jabil. In the six months ended 30
    September 2002, #24 million was charged in relation to the Jabil outsourcing
    arrangement.

    ii) In the six months ended 30 September 2002, in light of declining
    industry and economic trends on its current and expected future operations,
    the Group reassessed the carrying values of goodwill and tangible fixed
    assets. As a consequence tangible fixed assets were impaired by #31 million.

    iii) As part of the Group's cost reduction actions, a charge of #43 million
    (2002: #166 million) was recorded during the six months ended 30 September
    2003. This includes #13 million for the costs of the financial
    restructuring, #19 million for employee severance and the balance is for
    site rationalisation and other restructuring costs. The site rationalisation
    costs reflect charges associated with the closure and consolidation of
    various sites around the world as part of the business restructuring.

    iv) During the year ended 31 March 2002, the Group planned to implement a
    new global IT system. In light of the subsequent revised trading outlook and
    the continued focus on cost reduction, the implementation was terminated.
    During the six months ended 30 September 2002, the Group was able to revise
    its previous estimate of the overall costs leading to the release of #7
    million from the amounts accrued in the year to 31 March 2002.
    v) In light of the declining market and economic trends the Group was
    experiencing, during the previous financial year an exceptional provision
    against bad and doubtful debts was charged during the year to 31 March 2002.
    Of this amount, #4 million was reassessed and released to the profit and
    loss account in the six months to 30 September 2003. In the six months to 30
    September 2002, #8 million previously provided for was paid by the Group's
    debtors.

    vi) During the period ended 30 September 2002, the Group also recorded its
    #32 million share of the operating exceptional charges of its joint
    ventures. Of this, #31 million related to the impairment of intangible fixed
    assets in Ultramast Ltd.

    Analysis by segment
    # million
    6 months to 30 September                        2003         2002
    Network Equipment and Network Services           (33)        (187)
    Other                                              -          (18)
                                              ----------   ----------
    Continuing operations                            (33)        (205)
    Discontinued operations                            -           (1)
                                              ----------   ----------
                                                     (33)        (206)
                                                  ======       ======
    United Kingdom                                   (34)         (91)
    Other EMEA                                         9          (16)
    US                                                (7)         (96)
    CALA                                               -           (1)
    APAC                                              (1)          (2)
                                              ----------   ----------
                                                     (33)        (206)
                                                  ======       ======
 b. *Associates' operating exceptional items
    As disclosed in note 1 the Group has recorded #nil (2002: #18 million) of
    operating exceptional charges of its associates, in respect of Easynet Group
    Plc. These charges related to impairment of goodwill and tangible fixed
    assets, and restructuring and reorganisation costs.

 c. *Non-operating exceptional items
    # million
    6 months to 30 September                         2003         2002
    Gain/(loss) on disposal of discontinued             9           (5)
    operations
    Gain on disposal of associates                     76            -
    Gain on disposal of fixed assets and               18           31
    investments in continuing operations
    Group share of associates' non-operating            -           (3)
    exceptional items
                                               ----------   ----------
    Included in non-operating exceptional             103           23
    items
                                                   ======       ======

    Non-operating exceptional profits in the six months ended 30 September 2003
    amounted to #103 million and consisted of a #9 million gain on the disposal
    of discontinued operations, profits on the disposal of Easynet (#76
    million), Marconi Mobile Access S.p.A. (#9 million) and other fixed asset
    investments (#15 million), partially offset by a pension settlement loss on
    a previous disposal of #6 million.

    The gain on disposal of discontinued operations related to the recognition
    of deferred consideration on the disposal of Strategic Communications sold
    in the year ended 31 March 2003. Following agreement with Finmeccanica on
    17 July 2003, this cash has now been received. The loss on disposal of
    discontinued operations in 2002 resulted from the sale of Strategic
    Communications (#41 million) offset by the release of provisions relating to
    the disposal of the Group's Systems businesses (Medical, Commerce and Data
    Systems).

    On 4 July 2003, Marconi announced that it had successfully completed the
    sale of 36,135,948 ordinary shares in Easynet Group plc at a price of 112
    pence per share. This transaction raised #40.5 million before expenses and
    reduced the Group's economic stake in Easynet to 40 per cent. The net profit
    on disposal was approximately #30 million. On 4 September 2003, Marconi
    announced that it had successfully completed the sale of its remaining
    44,682,364 ordinary shares in Easynet at a price of 127 pence per share.
    This transaction raised #56.7 million before expenses and reduced the
    Group's economic stake in Easynet to zero. The net profit on disposal was
    approximately #46 million.

    On 17 July 2003, we completed the sale of our remaining non-core mobile
    communications subsidiary, Marconi Mobile Access S.p.A. (also known as UMTS)
    to Finmeccanica S.p.A.. We agreed to capitalise the business with
    approximately Euro 6 million (approximately #4 million) prior to disposal.
    The net profit on disposal is approximately #9 million.

    During the six months ended 30 September 2003, Marconi also disposed of a
    number of fixed asset investments. On 20 August 2003, we sold our entire
    stake of 2,249,000 shares in Gamma Telecom Holdings Limited for
    approximately #5.6 million giving rise to a net profit of approximately #4
    million. On 24 September 2003, we sold our shares in Bookham Technology for
    approximately #16 million giving rise to a profit of #6 million and on 9
    September 2003 we sold our shares in Oxus Plc for approximately #1 million.
    Further consideration was also received on the previous disposals of Tetra,
    Marconi Applied Technologies and SMS giving rise to a net profit of
    approximately #4 million.

    A settlement loss of #6 million has been recognised, as the Group is now
    demonstrably committed to transferring deferred pensioners out of the UK
    plan following the sale of the Group's 50 per cent share in General Domestic
    Appliances.

    In 2002, a curtailment gain of #28 million in respect of pension liabilities
    was recognised principally following the sale of the Group's 50 per cent
    share of General Domestic Appliances in March 2002. The balance mainly
    relates to gains on property disposals.

 d. *Amounts revalued/(written off) investments

    The revaluation of some of the Group's investments is in line with its
    accounting policy whereby listed investments are marked to their market
    value at the end of each reporting period and unlisted investments are held
    at the lower of cost and recoverable value.

 e. *Gain on waiver of balance payable to Marconi plc

    As part of the restructuring, Marconi Corporation plc and its subsidiaries
    entered into an agreement with Marconi plc and its direct subsidiaries to
    reassign and waive balances between the Marconi plc group and the Marconi
    Corporation plc group. At 31 March 2003, Marconi Corporation plc provided
    for amounts due to it from Marconi plc and its direct subsidiaries which are
    no longer considered to be recoverable. The gain of #25 million arose from a
    direct subsidiary of Marconi plc waiving payment of the balance on 19 May
    2003.

    Amounts written off in 2002 of #186 million were in respect of a funding
    receivable from Marconi plc in the six months ended 30 September 2002
    related to amounts which the Company no longer considered to be recoverable.

 f. *Exceptional cash flows

# million
6 months to 30 September                             2003         2002

Operating
ESOP settlement                                       (35)           -
Restructuring costs                                   (55)        (169)
Systems implementation costs                            -          (12)
Other                                                 (19)           -
                                               ----------   ----------
                                                     (109)        (181)
                                                   ======       ======
Non-operating and financing
Scheme consideration                                 (340)           -
Disposal of tangible fixed assets                      26           20
Net proceeds on disposal of interests in               98          387
subsidiary companies, joint ventures and
associates
                                               ----------   ----------
                                                     (216)         407
                                                   ======       ======

5. *NET INTEREST PAYABLE
    # million
    6 months to 30 September                         2003         2002

    Interest receivable
    Loans and deposits                                  9           20
    Other                                               -           13
                                               ----------   ----------
    Interest receivable total                           9           33

    Interest payable
    Bank loans, loan notes and overdrafts             (29)        (153)
    (2003: less interest accrual release of #3
    million)
                                               ----------   ----------
    Net interest payable - Group                      (20)        (120)
                                                    =====        =====
    Share of net income receivable from joint           -            1
    ventures and associates
                                               ----------   ----------
    Net interest payable                              (20)        (119)
                                                    =====        =====

6. *NET FINANCE (EXPENDITURE) / income

    # million
    6 months to 30 September                         2003         2002

    Finance costs
    Exceptional write off of capitalised              (46)           -
    losses on swaps
    Interest on pension scheme                        (74)         (83)
    liabilities
    Other (including premium on redemption            (11)          (2)
    of Junior notes)
                                               ----------   ----------
    Finance costs total                              (131)         (85)
                                                   ======       ======
    Finance income
    Expected return on pension scheme                  71           80
    assets
    Net gain on cash and unhedged foreign              13            7
    exchange borrowings

    Finance income total                               84           87
                                                   ======       ======

    Net finance expenditure                           (47)           2
                                                   ======       ======
7. *TAX

 a. *Tax (credit)/charge on loss on ordinary activities
    # million
    6 months to 30 September                         2003         2002

    Current taxation
    Corporation tax 30 per cent (2002: 30 per           -           (1)
    cent)
    UK overprovision in respect of prior              (20)           -
    years
    Overseas tax                                        6           11
                                               ----------   ----------
                                       Total          (14)          10
                                                   ======       ======
    A non-operating exceptional tax credit of #20 million (2002: #nil) arose as
    a result of the scheme of arrangement becoming effective.

 b. *Factors that may affect future tax charges

Deferred tax assets have not been recognised in respect of operating losses,
pension scheme deficits, and exceptional expenditure as the Group is not
sufficiently certain that it will be able to recover those assets within a
relatively short period of time.

8. *LOSS PER SHARE
    Basic and diluted loss per share is calculated by reference to a weighted
    average of 297.9 million ordinary shares (2002: 573.3 million ordinary
    shares) in issue during the period.
    The effect of share options is anti-dilutive for each period presented and
    has therefore been excluded from the calculation of diluted weighted average
    number of shares.
    An adjusted basic loss per share has been presented in order to highlight
    the underlying performance of the Group, and is calculated as set out in the
    table below.
    Reconciliation of loss per share excluding goodwill amortisation and
    exceptional items:

    6 months to 30                          2003                  2002
    September
                                            Loss                  Loss
                               Loss          per         Loss      per
                                  #        share            #    share
                            million        Pence      million    pence

    Loss and basic loss         (86)       (28.8)        (925)  (161.4)
    per share
    Exceptional items
    (note 4)
    Operating                    33         11.1          238     41.6
    exceptional items
    Group share of                -            -           18      3.1
    associate's
    operating
    exceptional items
    Non-operating              (103)       (34.6)         (23)    (4.0)
    exceptional items
    Amounts revalued/            (1)        (0.3)          40      7.0
    (written off)
    investments
    Gain on waiver of           (25)        (8.4)         186     32.4
    balance payable to
    Marconi plc group
    Goodwill                     54         18.1           86     15.0
    amortisation and
    impairment
    Write off of                 46         15.4            -        -
    capitalised losses
    on swaps
    Exceptional tax             (20)        (6.7)           -        -
    credit
                         ----------   ----------   ----------
                               (102)       (34.2)        (380)   (66.4)
                             ======       ======       ======   ======
    Using the number of shares in issue at 30 September 2003 (200 million), the
    pro forma basic and diluted loss per share was 42.9 pence and the adjusted
    basic loss per share was 51.0 pence.

9. *SHARE OPTIONS

        As previously announced at the time of the financial restructuring, in
        the six months to 30 September 2003, the Company granted nil cost share
        options to its executive directors and senior managers. In total, using
        numbers and prices following the 1 for 5 share consolidation, which took
        effect on 9 September 2003, options over 15.23 million ordinary shares
        were granted on 24 June 2003 with options over a further 1 million
        shares granted on 1 September 2003. The adjusted mid market closing
        price of a Marconi Corporation plc share on the dates of grant were
        293.75 pence on 24 June 2003 and 455 pence on 1 September 2003. Under UK
        GAAP, the cost of these options will be spread over the five performance
        periods defined in the nil cost share option plan set out in the Group's
        prospectus dated 31 March 2003. The overall impact on the Group's Profit
        and Loss Account over the life of the Plan through to the financial year
        ending 31 March 2007, assuming all performance triggers are met by the
        earliest vesting date, will be approximately #49 million before payroll
        tax. The #49 million charge is a non-cash item. The operating loss for
        the three months ended 30 September 2003 has been charged with #8
        million (2002: #nil) and shares to be issued in the balance sheet have
        been credited with #8 million.

        On 30 June 2003, the Company granted market value share options to
        employees. In total, options over 6.3 million ordinary shares have been
        or are expected to be granted. Under UK GAAP, the only cost of these
        options will be employer national insurance contributions incurred when
        the share options vest. The performance conditions are the same as the
        nil cost share option plan.

10. *stocks and contracts in progress

                                          30           30           31
                                   September         June        March
    # million                           2003         2003         2003

    Raw materials and bought in           71           84           89
    components
    Work in progress                      52           53           60
    Payments on account                   (2)          (2)          (2)
    Long term contract work in             7            5           11
    progress
    Finished goods                        74           75           76
                                  ----------   ----------   ----------
                                         202          215          234
                                      ======       ======       ======
11. *DEBTORS
                                          30           30           31
                                   September         June        March
    # million                           2003         2003         2003

    Amounts falling due within
    one year:
    Trade debtors                        339          375          464
    Amounts owed by joint                 25           28           30
    ventures and associates
    Other debtors                         71           75           57
    Prepayments and accrued               29           41           30
    income
                                  ----------   ----------   ----------
                                         464          519          581
    Amounts falling due after
    more than one year:
    Trade debtors                          6            8            2
    Other debtors                          1            1           29
    Prepayments and accrued                1            1            1
    income
                                  ----------   ----------   ----------
                                           8           10           32
                                  ----------   ----------   ----------
                                         472          529          613
                                       =====        =====        =====
12. *Cash at bank and in hand
                                          30           30           31
                                   September         June        March
    # million                           2003         2003         2003

    Cash and bank deposits               562          571          934
    repayable on demand
    Other cash deposits                  210          217          224
                                  ----------   ----------   ----------
    Cash at bank and in hand             772          788        1,158
                                      ======       ======       ======
    Included in the amounts above
    are restricted cash of:
    Secured                               13           15          812
    Collateral against bonding           176          184          135
    facilities
    Held by captive insurance             19           18           17
    company
    Mandatory redemption escrow            2            -            -
    account
                                  ----------   ----------   ----------
    Restricted cash                      210          217          964
    Other                                562          571          194
                                  ----------   ----------   ----------
    Cash at bank and in hand             772          788        1,158
                                      ======       ======       ======
    In note 17, liquid resources amounting to #201 million is restricted cash
    excluding secured amounts (shown above) but also includes cash held on
    deposit (not available within 24 hours).

    Cash at bank of #17 million was transferred to the mandatory redemption
    escrow account on 2 October 2003 and #17 million of this balance was used to
    redeem Junior notes on 17 October 2003.

13. *CREDITORS
                                          30           30           31
                                   September         June        March
    # million                           2003         2003         2003
    Amounts falling due within
    one year
    Bonds                                  -            -        2,147
    Bank loans and overdrafts
    Repayable on demand                   17           17        2,194
    Other                                  2            3            1
    Obligations under finance              1            1            -
    leases
                                  ----------   ----------   ----------
                                          20           21        4,342

    Payments received in                  52           47           76
    advance
    Trade creditors                      158          167          174
    Amounts owed to fellow                 -                       403
    subsidiaries of Marconi plc
    Amounts owed to joint                  9            9            9
    ventures and associates
    Current taxation                     111          109          137
    Other taxation and social             14           13           22
    security
    Other creditors                       94          130          193
    Accruals and deferred                169          170          185
    income
                                  ----------   ----------   ----------
                                         627          666        5,541
                                      ======       ======       ======
    Amounts falling due after
    more than one year
    Loan notes                           623          730            -
    Bank loans and overdrafts             28           30           30
    Obligations under finance              2            2            -
    leases
                                  ----------   ----------   ----------
                                         653          762           30
    Trade creditors                        -            2            -
    Other creditors                        7            6           16
                                  ----------   ----------   ----------
                                         660          770           46
                                       =====        =====        =====
    Amounts owed to joint ventures and associates includes #8 million owed to
    Oyster Lane Properties Limited, a joint venture, carried at #8 million in
    investments.

14. *PROVISIONS FOR LIABILITIES AND CHARGES
                                                           Warranties
                                      Share     Deferred          and
    # million    Restructuring      options          tax    contracts        Other        Total

    At 1 April              64           35            6           89          106          300
    2003
    Exchange                (1)           -            -            -           (1)          (2)
    rate
    adjustment
    Disposals                -            -            -            -           (3)          (3)
    Transferred              8            -            -            -            9           17
    from
    creditors
    Charged                 15            -            -           17            7           39
    Released                (3)           -            -           (1)          (6)         (10)
    Utilised               (26)         (35)           -          (17)         (17)         (95)
                    ----------   ----------   ----------   ----------   ----------   ----------
    At 30                   57            -            6           88           95          246
    September
    2003
                        ======       ======       ======       ======        =====       ======
    At 30 June              69            -            6           93          100          268
    2003
                        ======      =======       ======       ======        =====       ======
    Restructuring provisions mainly comprise expected costs for termination of
    employee contracts, costs for properties no longer occupied and onerous
    lease contracts. The associated outflows are generally expected to occur
    over the next year with vacant property costs being incurred over the next
    five years.

    Share option provisions at 1 April 2003 related to amounts paid to the ESOP
    derivative banks on 19 May 2003 in settlement of the potential ESOP
    derivative dispute.

    Warranties and contracts mainly comprise expected cost of maintenance under
    guarantees, other work in respect of products delivered and losses on
    contract work in progress in excess of related accumulated costs. The
    associated outflows are generally expected to occur over the lives of the
    products and contracts which are long term in nature.

    Other provisions mainly comprise expected employee related claims,
    environmental liabilities, other litigation, insurance balances, merger and
    acquisition claims and future scheme administration costs.

15. *EQUITY SHAREHOLDERS' INTERESTS

 a. *Share capital

                                            Number
                                                of
                                            shares                   #

Fully paid ordinary shares of 5p
each
Shares allotted at 1 April           2,866,250,735         143,312,537
2003
Converted to non-voting deferred    (2,866,250,735)       (143,312,537)
shares and cancelled
New ordinary shares issued           1,000,000,000          50,000,000
Shares issued in the period                  9,840                 492
Share consolidation (1 for 5)         (800,007,872)                  -
                                 -----------------   -----------------
Shares allotted at 30 September        200,001,968          50,000,492
2003 (25p each)

Unissued ordinary shares at 1        3,133,749,265         156,687,463
April 2003
Converted to non-voting deferred    (3,133,749,265)       (156,687,463)
shares and cancelled
New unissued ordinary shares         2,133,749,265         106,687,463
Shares issued in the period                 (9,840)               (492)
Share consolidation (1 for 5)       (1,706,991,540)                  -
                                 -----------------   -----------------
Unissued ordinary shares at 30         426,747,885         106,686,971
September 2003 (25p each)
                                 -----------------   -----------------
Authorised (25p each)                  626,749,853         156,687,463
                                           =======             =======

        As a consequence of the share consolidation, which took effect on 9
        September following shareholder approval, the number of Marconi
        Corporation plc shares outstanding was reduced from around 1 billion
        shares with nominal value of 5 pence each to approximately 200 million
        shares with nominal value of 25 pence each. Every five shares of 5p each
        were consolidated into one new share of 25p with entitlements to
        fractions of new shares aggregated and sold in the market for the
        benefit of the related shareholders.

15. *EQUITY SHAREHOLDERS' INTERESTS

b. *Reserves

              Shares                                    Profit
                  to     Share               Capital       and
                  be   premium   Capital   reduction      loss
# million     issued   account   Capital     reserve   account    Total

At 1 April         -       700         9           -    (4,187)  (3,478)
2003
Cancellation       -         -         -           -       143      143
of old share
capital
Arising on         -     3,670         -           -         -    3,670
new shares
issued
Loss retained      -         -         -           -       (86)     (86)
for the
period
Exchange           -         -         -           -        (1)      (1)
differences
Added in the       8         -         -           -         -        8
period
Actuarial          -         -         -           -        14       14
gain on
retirement
benefit
schemes
Transfer on        -    (4,370)        -         343     4,027        -
capital
reduction
Losses             -         -         -          (9)        9        -
transferred
              ------    ------    ------      ------    ------   ------
At 30              8         -         9         334       (81)     270
September
2003
               =====     =====     =====       =====     =====    =====
At 30 June         1         -         9         343      (102)     251
2003
               =====     =====     =====       =====     =====    =====

        On 21 May 2003, the High Court approved a reduction of share capital of
        #143 million and reduction of share premium of #4,370 million. The
        balances have been credited to the Company profit and loss reserve which
        stood at #4,170 million at 31 March 2003. The High Court determined that
        any surplus over the deficit at 31 March 2003 was to be held as a
        non-distributable reserve which would be transferred to the profit and
        loss reserve as losses are incurred or when all creditors as at 21 May
        2003 have been satisfied. Company losses of #9 million have been
        transferred in the period.

16. *CASH FLOW

 a. *Net cash inflow/(outflow) from operating activities before exceptional items
    # million
    6 months to 30 September                                Continuing
    2003

    Group operating loss after                                    (149)
    exceptional items
    Operating exceptional items                                     33
    (note 4(a))
                                                                ------
    Group operating loss before                                   (116)
    exceptional items
    Depreciation charge                                             42
    Goodwill amortisation                                           49
    Shares to be issued                                              8
    Decrease in stock                                               33
    Decrease in debtors                                            123
    Decrease in creditors                                          (70)
    Decrease in provisions                                          (4)
                                                                ------
                                                                    65
                                                                  ====

    6 months to 30 September    Continuing   Discontinued        Total
    2002
    Group operating loss after        (485)            (6)        (491)
    exceptional items
    Operating exceptional items        205              1          206
    (note 4(a))
                                    ------         ------       ------
    Group operating loss before       (280)            (5)        (285)
    exceptional items
    Depreciation charge                 75              4           79
    Goodwill amortisation               54              -           54
    Decrease/(increase) in             143            (16)         127
    stock
    Decrease/(increase) in             102             (1)         101
    debtors
    Decrease in creditors             (201)           (23)        (224)
    Increase/(decrease) in               7             (1)           6
    provisions
                                    ------         ------       ------
                                      (100)           (42)        (142)
                                      ====           ====         ====
 b. *Returns on investments and servicing of finance

# million                                              2003       2002
6 months to 30 September
Income from loans, deposits and investments              10         31
Interest paid                                           (19)      (189)
Premium on redemption of Junior notes                   (10)         -
                                                     ------     ------
                                                        (19)      (158)
                                                     ------     ------

        Of the above amount, continuing operations account for an outflow of #19
        million (2002: #156 million) and discontinued operations an outflow of
        #nil (2002: #2 million).



 c.. *Tax (paid)/repaid
    # million                                       2003          2002
    6 months to 30 September

    UK corporation tax repaid                          -             3
    Overseas tax paid                                 (2)          (16)
                                                  ------        ------
                                                      (2)          (13)
                                                    ====          ====
    All the above amounts relate to continuing operations.
d. *Capital expenditure and financial investment
    # million                                         2003        2002
    6 months to 30 September

    Purchases of tangible fixed assets                 (12)        (27)
    Purchases of fixed asset investments                 -         (21)
    Sales of tangible fixed assets                      30          20
    Sales of fixed asset investments                    23           3
                                                    ------      ------
                                                        41         (25)
                                                      ====        ====

    Sales of tangible fixed assets shown above include an amount of #26 million
    relating to information technology assets, (2002: #20 million of property
    disposals).
    Of the above amount, continuing operations account for an inflow of #41
    million (2002: #21 million outflow) and discontinued operations an outflow
    of #nil (2002: #4 million)

 e. *Acquisitions and disposals
    # million                                            2003     2002
    6 months to 30 September

    Investments in subsidiary companies                    (6)      (3)
    Sales of interests in subsidiary companies             16      375
    Sales of interests in associates and joint             94        -
    ventures
    Net overdraft disposed with subsidiary companies       (6)      15
                                                       ------   ------
                                                           98      387
                                                         ====     ====
f. *Net cash inflow/(outflow) from management of liquid resources

        Comprising term deposits generally of less than one year and other
        readily disposable current asset investments:

# million                                                2003     2002
6 months to 30 September

Deposits made with banks and similar financial           (104)     (83)
institutions
Deposits withdrawn from banks and similar financial       123        6
institutions
                                                       ------   ------
                                                           19      (77)
                                                         ====     ====



 g. *Net cash (outflow)/inflow from financing

# million                                                2003     2002
6 months to 30 September

Decrease in bank loans                                     (3)     (62)
Increase in bank loans                                      4        -
Decrease in loan notes                                   (106)       -
Increase in loans from Marconi plc and subsidiaries of      -       24
Marconi plc
Scheme consideration                                     (340)       -
                                                       ------   ------
                                                         (445)     (38)
                                                         ====     ====

17. *ANALYSIS OF NET MONETARY FUNDS / (DEBT)

                 At                 Non-cash                              At       At
                  1                  changes      Other     Exchange      30       30
              April     Cash              on   non-cash         rate    Sept     June
# million      2003     flow   restructuring    changes   adjustment    2003     2003

Cash at bank    934     (356)              -          -           (7)    571      581
and in
hand
Overdrafts      (22)       4               -          -            1     (17)     (17)

                        (352)
Liquid          224      (19)              -          -           (4)    201      207
resources
Amounts
falling due
within one
year
Bank loans   (2,173)       3           2,147         (7)          28      (2)      (3)
Bonds        (2,147)       -           2,165          -          (18)      -        -
Finance           -        -               -         (1)           -      (1)      (1)
leases
Loans from     (403)       -             403          -            -       -        -
Marconi plc
and fellow
subsidiaries
of Marconi
plc
Amounts
falling due
after more
than one
year
Bank loans      (30)      (4)              -          7           (1)    (28)     (30)
Loan notes        -      106            (756)         -           27    (623)    (730)
Finance           -        -               -         (2)           -      (2)      (2)
leases
                         105
             ------   ------          ------     ------       ------   -----   ------
             (3,617)    (266)          3,959         (3)          26      99        5
               ====     ====            ====       ====         ====    ====     ====

Of the cash flow, #340 million relates to amounts paid out as scheme
consideration and #35 million in respect of the ESOP derivative banks. Non-cash
adjustments relate mainly to the Group's restructuring of bond and bank debt
which was schemed on 19 May 2003 when new debt was issued.

18. *CONTINGENT LIABILITIES
                                                    30      30      31
                                             September    June   March
    # million                                     2003    2003    2003

    Contingent liabilities at period end            20      20      20
                                                 =====   =====   =====
    Litigation

    Contingent liabilities relate mainly to the cost of legal proceedings, which
    in the opinion of the Directors, are not expected to have a materially
    adverse effect on the Group.

    The Group is engaged in a number of legal proceedings relating to class
    shareholder actions, patent and other claims under contracts.
    In Part X, section 15.4 of our listing particulars we made disclosure of the
    lawsuit file by Bell Communications Research. Inc, now known as Telcordia
    Technologies Inc., or Telcordia, on 14 October 1998. On 29 September 2003,
    the district court held a hearing in relation to that lawsuit to clarify its
    previous claim construction ruling. Subsequent to the hearing the district
    court issued an opinion clarifying its original claim construction in a
    manner that will permit Telcordia to maintain its claim for infringement of
    the remaining patent.

    The Group is vigorously defending these cases, the estimated cost of which
    is disclosed above, and the Directors currently believe that the claims are
    unlikely to be settled for amounts resulting in material cash or other asset
    outflows.

    Guarantees

    At 30 September 2003, the Group had provided third parties with guarantees,
    performance bonds and indemnities, the exercise of which is considered to be
    remote.

19. *POST BALANCE SHEET EVENTS

        On 10 October 2003, the Group announced that it has agreed to outsource
        the manufacture of its Fixed Wireless Access products and associated
        operations in Offenburg, Germany, to Elcoteq Network Corporation for
        approximately #7 million. Approximately 340 current employees at the
        site will transfer employment under this agreement which was completed
        in November 2003.

        On 17 October 2003, the Group redeemed $29 million (approximately #17
        million) of the Junior Notes reducing the principal to $289 million
        (approximately #174 million).

        On 12 November 2003, we announced the disposal of our 50 per cent
        interest in Confirmant Limited to Oxford GlycoSciences, a wholly owned
        subsidiary of Celltech Group plc. The cash proceeds of over #4 million
        will be transferred into the Mandatory Redemption Escrow Account and
        used in due course to fund a partial redemption of our Junior Notes. In
        the six months ended 30 September 2003, we recorded a #2 million charge
        to the profit and loss account in respect of our share of Confirmant's
        operating loss.

20. *SUPPLEMENTARY INFORMATION FOR NARF & NON-NARF SEGMENTS

 a. *BASIS OF PRESENTATION

This supplementary information is a requirement of our covenants on our loan
notes which requires that for as long as the Junior Notes are outstanding, we
disclose a profit and loss account, net asset statement and cash flow statement,
together with commentary, for our two segments, the Issuer (Marconi Corporation
plc) and its non-US subsidiaries and the US parent (Marconi Communications,
Inc.) and its subsidiaries. We call these segments the North American Ring Fence
(NARF) and Non-NARF.

A ring-fence around Marconi Communications, Inc and its subsidiaries was created
in connection with the Scheme of Arrangement for Marconi Corporation plc
effective on the 19th May 2003. NARF is comprised of the US operating businesses
the equipment and service activities of the Broadband Routing and Switching
(BBRS), Outside Plant & Power (OPP) and North American Access (NAA)
(irrespective of the country of destination of these sales). In addition certain
sales for products from Marconi Corporation plc and Non-NARF businesses are
transacted through NARF regions in where economies of scale permit the NARF to
conduct the business more efficiently (see page 6).

Non-NARF mainly comprises Marconi Corporation plc and our European and the Rest
of the World businesses: Optical Networks, Access Networks, Other Network
Equipment and Network Services and includes central costs.

Non-NARF holds the investment in Marconi Communications, Inc which eliminates on
consolidation and gives rise to goodwill. The Group has previously impaired all
the goodwill relating to the acquisition of FORE Systems and is carrying #106
million of goodwill as at 30 September 2003 relating to the acquisition of
Reltec Corporation. As the purposes of this disclosure is to separately present
NARF and Non-NARF businesses, we have removed the investment in NARF from the
Non-NARF net asset statement and have not consolidated any of the NARF profits
in the Non-NARF profit and loss account.

NARF and Non-NARF are the only two segments of the Group and can be reconciled
to the Group as follows.
                                             3           3           6
                                        months      months      months
                                            to          to          to
                                            30          30          30
                                          June   September   September
# million                                 2003        2003        2003

Turnover
NARF                                       121         139         260
Non-NARF                                   246         250         496
                                      --------    --------    --------
Group                                      367         389         756
                                         =====       =====       =====
Profit/(loss) for the period
NARF                                         3          15          18
Non-NARF                                   (88)        (10)        (98)
                                      --------    --------    --------
                                           (85)          5         (80)
Goodwill amortisation on NARF               (3)         (3)         (6)
                                      --------    --------    --------
Group                                      (88)          2         (86)
                                         =====       =====       =====
Net cash inflow from operating
activities before exceptional items
NARF                                        17           -          17
Non-NARF                                    15          33          48
                                      --------    --------    --------
Group                                       32          33          65
                                         =====       =====       =====

                                          31           30           30
                                       March         June    September
                                        2003         2003         2003
Net assets/(liabilities) after
retirement benefit deficits
NARF                                    (496)          73           93
Non-NARF                              (2,954)         120          124
                                  ----------   ----------   ----------
                                      (3,450)         193          217
Goodwill related to the                  118          110          106
acquisition of Reltec (NARF)
                                  ----------   ----------   ----------
Group                                 (3,332)         303          323
                                      ======       ======       ======

Goodwill reduces due to amortisation through the profit and loss account and
foreign exchange movements recognised through reserves.

B) OPERATING AND FINANCIAL REVIEW

The following discussion of the financial statements of NARF and Non-NARF should
be read in conjunction with the Group discussion above. We highlight below any
matters related to trends in NARF or Non-NARF, require additional explanation or
commentary in addition to from the overall results for the Marconi Corporation
plc Group as discussed in Results of Operations, Financial Condition and
Liquidity and Capital Resources above.

Results of Operations

Sales

Second quarter sales for the NARF of #139m were #18m or 15% greater than first
quarter sales, with all main businesses contributing to this positive trend.

BBRS recorded 36 per cent growth in equipment sales, up #10 million to #38
million compared to the first quarter. This strong performance was driven by
increased sales to the US Federal Government at the end of this customer's
fiscal year and included sales of Marconi's BXR-48000 multi-service switch
router under the #6 million agreement announced at the end of the quarter. BBRS
service sales were stable quarter on quarter at #15 million with increased
levels of professional services to the US Federal Government offset by a further
decline, as expected, of support sales to the Group's North American enterprise
customer base.

North American Access sales improved by #5 million or 20 per cent to #30 million
during the second quarter, largely as a result of the acceleration of ADSL
roll-outs (particularly at BellSouth).

OPP total sales increased by 6 per cent from #51 million in the first quarter to
#54 million, with equipment sales up 11 percent to #39 million and services
relatively flat at #15 million compared to #16 million in the previous quarter.
Marconi has been successful in securing a number of new wins of outside plant
and power systems, primarily fuelled by increased demand from North American
wireless operators.

Total sales recorded in the NARF during the first half of the financial year of
#260 million included #4 million of products and services from Non-NARF
businesses, which were sold through NARF entities (#2 million in the first
quarter, #2 million in the second quarter).

Non-NARF sales increased by #4 million or 2 per cent from #246 million in the
first quarter to #250 million in the second quarter, with stable sales of
Network Services partially offset by modest growth in Network Equipment.

Optical Network sales were #80 million, down #5 million or 6 per cent on the
first quarter as operators continued to spend only to maintain the smooth
running of existing infrastructure as opposed to new build projects.

In EMEA, which accounted for approximately 75 per cent of Optical Network sales
in the period, the reduced level of sales to BT discussed above were partially
offset by increased sales to Vodafone and Wind in Italy. From a product line
perspective, sales of DWDM fell further during the quarter in the face of
decreased demand for this technology across the industry. Sales of SDH
equipment, however, which accounted for over 80 per cent of Optical Network
sales in the period, were up slightly quarter on quarter with further progress
made in migrating existing customers to Marconi's recently launched next
generation optical products with shipments to the Italian market and orders
received in China and the UK.

Marconi recorded a 9 per cent sequential increase in sales of Access Networks,
from #44 million in the first quarter to #48 million. This was driven by the
increased demand for fixed wireless access products from German wireless
operators described above, with Fixed Wireless Access accounting for
approximately 38 per cent of Access Network sales in the quarter. Marconi
maintained the level of shipments of its multi-service access node, the Access
Hub, which accounted for approximately 20 per cent of Access Network sales with
shipments to Telecom Italia, Wind and Telkom South Africa. The balance of Access
Network sales related to Voice Systems (25 per cent) and other legacy narrowband
access products (17 per cent).

Sales of Other Network Equipment increased by 33 per cent to #16 million (Q1
FY04: #12 million) mainly as a result of shipments of multi-media terminals to
Telefonica (Spain) and payphones into the APAC market.

Overall Network Services in Non-NARF were stable quarter on quarter with an
increased level of IC&M activity particularly in Italy and the UK (up #4 million
or 9 per cent to #47 million), offsetting slightly lower sales of Value-Added
Services (down #3 million or 5 per cent to #61 million). The aftermath of the
recent conflict in the Middle East and tough market conditions in Wireless
Software and Services continue to affect the VAS business. Reduced sales in
these areas were, however, partially offset during the quarter by an improvement
in cable installation services due to increased volumes from frame agreements
and by initial sales to a new customer in the German transportation market
within the Group's Integrated Systems activity.

The above Non-NARF product sales amount to #500 million in the six months ended
30 September 2003, which includes #4 million sold through NARF. These are
reported as NARF sales and are eliminated from Non-NARF sales which total #496
million in the six months ended 30 September 2003.

Operating Profit/(Loss)

A discussion of the different operating profiles of NARF and Non-NARF is
provided on page 29 above.

Gross Margins in the NARF increased by #12 million or 29 per cent compared to
the first quarter to reach #53 million or 38 per cent of sales. The improvement
was largely due to higher sales in the second quarter and the greater percentage
of BBRS sales as compared to total NARF sales and favourable business mix within
BBRS with a higher proportion of sales of Marconi's newly launched BXR-48000.
BBRS sales represented 38.4% of total NARF sales in the second quarter versus
34.8% of total NARF sales in the first quarter.

Non-NARF Gross Margin was #50 million or 20 per cent in the second quarter and
increased by #3 million compared to #47 million or 19 per cent in the first
quarter. The increase arose from the improved profitability on long-term
contracts and cost reductions that more than offset the depreciation on
development and test models discussed on page 26.

Operating expenses in NARF increased by #5m to #37 million, or 27 per cent of
sales, in the three months ended 30 September 2003 from #32 million, or 26 per
cent of sales, in the three months ended 30 June 2003. This increase mainly due
to #2 million of exceptional items relating to site rationalisation and employee
severance costs charged in the second quarter.

Operating expenses in Non-NARF decreased from #140 million for the three months
ended 30 June 2003 to #125 million in the three months ended 30 September 2003.
Goodwill amortisation is included in these balances and which decreased from #22
million in the first quarter to #21 million in the second quarter. Operating
exceptional items described in Notes to the Non Statutory Accounts: Note 4, page
54, are also included and decreased from #19 million to #12 million. Operating
expenses before exceptional items and goodwill decreased from #99 million to #92
million. The benefit of cost savings achieved through restructuring, discussed
in the Outlook on page 4, was partially offset by share options charges that
amounted to #1 million in the first quarter and #8 million in the second
quarter.

NET ASSET STATEMENTS

The net assets in NARF are #93 million at 30 September 2003, an increase of #20
million from 30 June 2003 and #589 million from 31 March 2003. The improvement
since 31 March 2003 was due to the recapitalisation of Marconi Communications,
Inc as a condition of the financial restructuring of the Group. This was mainly
achieved by a loan to Marconi Communications, Inc from a subsidiary of Marconi
Corporation plc being capitalised leading to a reduction in creditors payable
within and after more than one year of #527 million. In addition, Non-NARF
invested #42 million of cash in Marconi Communications, Inc prior to the
financial restructuring to ensure that it has sufficient cash to meet its
obligations as they fall due. This cash has not been used by NARF in the period.

The improvement of #20 million from 30 June 2003 to 30 September 2003 is due to
the profit made in the quarter of #15 million, exchange differences of #3
million and actuarial gains recorded on retirement benefit schemes of #2
million.

The Non-NARF net assets (excluding the investment in NARF) of #124 million have
improved by #4 million from 30 June 2003 and by #3,078 million from net
liabilities of #2,954 million at 31 March 2003. The improvement since 31 March
2003 is a result of the financial restructuring of the Group explained on page
7.

Goodwill arising on the acquisition of Reltec is not carried by NARF or Non-NARF
and only arises on the consolidation of the two segments. Goodwill in the
Non-NARF net asset statement principally relates to GPT, Bosch and Nokia and is
being amortised as discussed on page 34.

Tangible fixed assets are reducing in NARF and Non-NARF, as depreciation
continued to exceed capital expenditure and IT assets have been disposed as
discussed on page 34.

All investments are held by Non-NARF entities and are explained on page 35.

The NARF businesses have continued to focus on facility site rationalisation and
streamlining the use of contract manufacturers as a means of enhancing inventory
and supplier management. Consequently, inventory in NARF is low compared with
the Non-NARF. Non-NARF inventory continues to fall as discussed on page 35.
Debtors and creditors include amounts due to and from Non-NARF companies. These
balances net to #13 million payable to NARF from Non-NARF at 30 September 2003.
The reductions in provisions are explained on page 36.

Retirement benefit scheme deficits relate to former Reltec plans for NAA and OPP
employees. The Marconi USA Employees' plan, which has a deficit of #10 million
at 30 September 2003, includes assets and liabilities in respect of NARF and
Non-NARF employees and deferred pensioners. As the sponsoring company lies
within Non-NARF, all of the deficit is allocated to Non-NARF. An actuarial
valuation has been undertaken for all plans at 30 September 2003 and the
reduction in NARF is due to our return on pension assets exceeding expectation.
In Non-NARF, the deficit has decreased mainly as a result of factors as
discussed on page 36.

Cash Flow

Of our total cash inflow from operating activities before exceptional items of
#65 million, NARF contributed an inflow of #17 million and Non-NARF an inflow of
#48 million. In Non-NARF this was mainly a result of cash collections from
debtors. In our NARF business this was largely generated through operating
profit. Our Non-NARF businesses benefited in particular from our successful
renegotiation of payment terms with a number of key European customers.
NARF net cash inflow from operating activities before exceptional items of #17
million was all generated in the first quarter. In the second quarter, the
increase in operating profit before exceptional items from #9 million to #18
million was offset by working capital movements due to the timing of creditor
payments and reductions in advanced billings on legacy enterprise customer
service contracts.

Non-NARF generated a net cash inflow of #15 million in the first quarter and #33
million in the second quarter. This was driven by improvements in debtor
collection as discussed on page 35. Of our total operating exceptional cash
outflow of #109 million, #13 million was incurred in NARF and #96 million in
Non-NARF. Two main factors contribute to the higher level of exceptional cash
costs in Non-NARF compared to NARF: i) 100 per cent of the advisor fees and
expenses relating to our financial restructuring were incurred directly by
Marconi Corporation plc (#33 million) which forms part of Non-NARF; ii) a higher
proportion of our current operational restructuring initiatives are focused in
Non-NARF and in particular in Continental Europe, where costs associated with
severance payments and plant rationalisation are typically higher than in the
United States. Of the #13 million incurred in NARF, approximately #10 million
related to payments made as a result of onerous leases on vacant properties and
other assets no longer required to support the restructured business.

Of our total returns on investments and servicing of finance of #19 million, #18
million was incurred in Non-NARF and related mainly to interest paid on the
Junior and Senior Notes issued by Marconi Corporation plc and the 10 per cent
premium paid to redeem Junior Notes during the second quarter (see Returns on
Investments and Servicing of Finance on page 39 above).

All disposal proceeds received in the first half of the financial year was
generated in Non-NARF (see Cash Flows from Acquisitions and Disposals on page 40
above).

The cash inflow from financing of #46 million mainly relates to the investment
by Non-NARF of #42 million in NARF discussed above. Non-NARF has included this
under acquisitions and disposals.

NARF has a $22.5 million credit facility available for financial liquidity. The
credit facility is secured by certain buildings and property located in the US.
As of the end of the first quarter and second quarter the NARF has not drawn any
amounts under the credit facility. The NARF reconciliation of the net cash flow
to movements in net monetary funds in the six months ended 30 September 2003
included #527 million of loan capitalisation as discussed above.

C) FINANCIAL INFORMATION

CONSOLIDATED NARF PROFIT AND LOSS ACCOUNT
                                           3            3            6
                                      months       months       months
                                          to           to           to
                                          30           30           30
                                        June    September    September
# million                               2003         2003         2003
TURNOVER
Continuing operations                    121          139          260
                                  ----------   ----------   ----------
OPERATING PROFIT
Group operating profit
Excluding goodwill amortisation            9           18           27
and exceptional items
Goodwill amortisation                      -            -            -
Operating exceptional items                -           (2)          (2)

Total operating profit -                   9           16           25
continuing operations

Net interest payable                      (5)          (1)          (6)

PROFIT ON ORDINARY ACTIVITIES
BEFORE TAXATION
Excluding goodwill amortisation            4           17           21
and exceptional items
Goodwill amortisation and                  -           (2)          (2)
exceptional items
                                           4           15           19

TAX CHARGE ON PROFIT ON ORDINARY          (1)           -           (1)
ACTIVITIES

LOSS ON ORDINARY ACTIVITIES                3           15           18
Equity minority interests                  -            -            -
                                  ----------   ----------   ----------
PROFIT ON ORDINARY ACTIVITIES              3           15           18
ATTRIBUTABLE TO THE EQUITY
SHAREHOLDERS AND RETAINED PROFIT
FOR THE PERIOD
                                      ======       ======       ======

NARF CONSOLIDATED NET ASSET STATEMENT
                                                  30       30       31
                                                Sept     June    March
# million                                       2003     2003     2003

FIXED ASSETS
Tangible assets                                   94      101      115
                                              ------   ------   ------

CURRENT ASSETS
Stocks and contracts in progress                  41       40       42
Debtors: amounts falling due within one          229      206      259
year
Debtors: amounts falling due after more than     186      187       83
one year
Cash at bank and in hand                          75       77       24
                                              ------   ------   ------
                                                 531      510      408

Creditors: amounts falling due within one       (292)    (290)    (350)
year
                                              ------   ------   ------
NET CURRENT ASSETS                               239      220       58

Total assets less current liabilities            333      321      173
Creditors: Amounts falling due after more       (164)    (164)    (585)
than one year
Provisions for liabilities and charges           (60)     (66)     (66)
                                              ------   ------   ------
NET ASSETS/(LIABILITIES) BEFORE RETIREMENT       109       91     (478)
BENEFIT DEFICITS
Retirement benefit scheme deficits               (16)     (18)     (18)

NET ASSETS/(LIABILITIES) AFTER RETIREMENT         93       73     (496)
BENEFIT DEFICITS
                                              ======   ======   ======

NARF CONSOLIDATED CASH FLOW STATEMENT

                                                         3           6
                                                    months      months
                                                        to          to
                                                        30          30
                                                 September   September
# million                                             2003        2003

Net cash inflow from operating activities before         -          17
exceptional items
Exceptional cash outflows from operating                (9)        (13)
activities

Net cash (outflow)/inflow from operating                (9)          4
activities after exceptional items - Continuing
operations
                                                   -------     -------
Returns on investments and servicing of                 (1)         (1)
finance
Tax paid                                                 -           -
Capital expenditure and financial investment            (1)          5
Acquisitions and disposals                               -          (1)
                                                   -------     -------
Cash outflow before use of liquid resources and        (11)          7
financing
Net cash inflow from management of liquid                -           3
resources
Capital contribution by Non-NARF group                   -          42
Other net cash inflow from financing                     8           5
                                                   -------     -------
DECREASE IN CASH AND NET BANK BALANCES REPAYABLE        (3)         57
ON DEMAND
                                                     =====       =====
NARF RECONCILIATION OF NET CASH FLOW TO MOVEMENTS IN NET
MONETARY FUNDS/(DEBT)
                                                         3           6
                                                    months      months
                                                        to          to
                                                        30          30
# million                                        September   September
                                                      2003        2003

Decrease in cash and net bank balances repayable        (3)         57
on demand
Net cash inflow from management of liquid                -          (3)
resources
Net cash inflow from increase in debt and lease         (8)         (5)
financing

Change in net monetary funds/(debt) resulting          (11)         49
from cash flows
Other non-cash changes                                   8         527
Effect of foreign exchange rate changes                  1          (1)
Movement in net monetary funds/(debt) in the            (2)        575
period
Net monetary funds/(debt) at beginning of               99        (478)
period
Net monetary funds at end of period                     97          97

NARF CONSOLIDATED STATEMENT OF TOTAL RECOGNISED GAINS AND LOSSES
                                             3           3           6
                                        months      months      months
                                            to          to          to
                                            30          30          30
                                          June   September   September
# million                                 2003        2003        2003

Loss on ordinary activities
attributable to the shareholders
Group                                        3          18          15
Share of joint ventures                      -           -           -
Share of associates                          -           -           -
                                             3          18          15

Exchange differences on translation         (3)          -           3

Actuarial gain recognised on retirement      -           2           2
benefit schemes
                                        ------      ------      ------
TOTAL RECOGNISED GAINS AND LOSSES            -          20          20
                                         =====       =====       =====

NARF RECONCILIATION OF MOVEMENTS IN NET ASSETS
                                             3           3           6
                                        months      months      months
                                            to          to          to
                                            30          30          30
                                          June   September   September
# million                                 2003        2003        2003

Total recognised gains and losses            -          20          20
Additional paid in capital (share          569           -         569
premium)
                                         -----        ----       -----
Total movement in the period               569          20         589

Equity shareholders' interests at         (496)         73        (496)
beginning of period
                                        ------       -----       -----
Equity shareholders' interests at end       73          93          93
of period
                                          ====        ====        ====

CONSOLIDATED NON-NARF PROFIT AND LOSS ACCOUNT
                                           3            3            6
                                      months       months       months
                                          to           to           to
                                          30           30           30
                                        June    September    September
# million                               2003         2003         2003
TURNOVER
Continuing operations                    246          250          496
                                  ----------   ----------   ----------
OPERATING LOSS
Group operating loss
Excluding goodwill amortisation          (52)         (42)         (94)
and exceptional items
Goodwill amortisation                    (22)         (21)         (43)
Operating exceptional items              (19)         (12)         (31)

Continuing operations                    (93)         (75)        (168)

Share of operating loss of joint           -           (2)          (2)
ventures
                                  ----------   ----------   ----------
                                         (93)         (77)        (170)
Share of operating loss of
associates
Excluding goodwill amortisation           (5)          (1)          (6)
and exceptional items
Goodwill amortisation                     (3)          (2)          (5)
                                          (8)          (3)         (11)
                                  ----------   ----------   ----------
Total operating loss                    (101)         (80)        (181)

Non-operating exceptional items
Gain on disposal of discontinued           9            -            9
operations
Gain on disposal of associates             -           76           76
(Loss)/gain on disposal of fixed          (6)          24           18
assets and investments in
continuing operations
                                           3          100          103

Amounts revalued/(written off)             1            -            1
investments
Gain on waiver of balance payable         25            -           25
to Marconi plc group
Net interest receivable /                  1          (15)         (14)
(payable)
Net finance expenditure                  (35)         (12)         (47)

LOSS ON ORDINARY ACTIVITIES
BEFORE TAXATION
Excluding goodwill amortisation          (91)         (72)        (163)
and exceptional items
Goodwill amortisation and                (15)          65           50
exceptional items
                                        (106)          (7)        (113)
TAX CREDIT/(CHARGE) ON LOSS ON
ORDINARY ACTIVITIES
Excluding tax on goodwill                 (2)          (3)          (5)
amortisation and exceptional
items
Exceptional tax credit                    20            -           20
                                          18           (3)          15

LOSS ON ORDINARY ACTIVITIES              (88)         (10)         (98)
Equity minority interests                  -            -            -
                                  ----------   ----------   ----------
LOSS ON ORDINARY ACTIVITIES              (88)         (10)         (98)
ATTRIBUTABLE TO THE EQUITY
SHAREHOLDERS AND RETAINED LOSS
FOR THE PERIOD
                                       =====        =====        =====
NON-NARF CONSOLIDATED NET ASSET STATEMENT
                                          30           30           31
                                        Sept         June        March
# million                               2003         2003         2003

FIXED ASSETS
Goodwill                                 435          456          479
Tangible assets                           98          108          128
Investments                               23           57           63
                                  ----------   ----------   ----------
                                         556          621          670
CURRENT ASSETS
Stocks and contracts in                  161          175          192
progress
Debtors: amounts falling due             519          565          658
within one year
Debtors: amounts falling due             167          168          611
after more than one year
Cash at bank and in hand                 697          711        1,134
                                  ----------   ----------   ----------
                                       1,544        1,619        2,595

Creditors: amounts falling due          (619)        (628)      (5,527)
within one year
                                  ----------   ----------   ----------
NET CURRENT ASSETS/(LIABILITIES)         925          991       (2,932)

Total assets less current              1,481        1,612       (2,262)
liabilities
Creditors: Amounts falling due          (841)        (951)        (123)
after more than one year
Provisions for liabilities and          (186)        (202)        (234)
charges
                                  ----------   ----------   ----------
NET ASSETS/(LIABILITIES) BEFORE          454          459       (2,619)
RETIREMENT BENEFIT DEFICITS
Retirement benefit scheme               (330)        (339)        (335)
deficits
                                  ----------   ----------   ----------
NET ASSETS/(LIABILITIES) AFTER           124          120       (2,954)
RETIREMENT BENEFIT DEFICITS
                                       =====        =====        =====
NON-NARF CONSOLIDATED CASH FLOW STATEMENT
                                                        3            6
                                                   months       months
                                                       to           to
                                                       30           30
                                                September    September
# million                                            2003         2003

Net cash inflow from operating activities              33           48
before exceptional items
Exceptional cash outflows from operating              (29)         (96)
activities
                                               ----------   ----------
Net cash inflow/(outflow) from operating                4          (48)
activities after exceptional items -
Continuing operations
Returns on investments and servicing of               (22)         (18)
finance
Tax paid                                                -           (2)
Capital expenditure and financial investment           20           36
Acquisitions and disposals                            103           57
                                               ----------   ----------
Cash outflow before use of liquid resources           105           25
and financing
Net cash inflow from management of liquid               5           16
resources
Cash element of Scheme consideration                    -         (340)
Other net cash outflow from financing                (112)        (110)
                                               ----------   ----------
DECREASE IN CASH AND NET BANK BALANCES                 (2)        (409)
REPAYABLE ON DEMAND
                                                   ======       ======
NON-NARF RECONCILIATION OF NET CASH FLOW TO MOVEMENTS IN NET
MONETARY FUNDS/(DEBT)
                                                        3            6
                                                   months       months
                                                       to           to
                                                       30           30
                                                September    September
# million                                            2003         2003

Decrease in cash and net bank balances                 (2)        (409)
repayable on demand
Net cash inflow from management of liquid              (5)         (16)
resources
Net cash outflow from decrease in debt and            112          110
lease financing
                                               ----------   ----------
Change in net monetary funds/(debt) resulting         105         (315)
from cash flows
Other non-cash changes                                 (8)       3,429
Effect of foreign exchange rate changes                (1)          27
                                               ----------   ----------
Movement in net monetary funds/(debt) in the           96        3,141
period
Net monetary debt at beginning of period              (94)      (3,139)
                                               ----------   ----------
Net monetary funds at end of period                     2            2
                                                    =====        =====
NON-NARF CONSOLIDATED STATEMENT OF TOTAL RECOGNISED GAINS AND LOSSES
                                           3            3            6
                                      months       months       months
                                          to           to           to
                                          30           30           30
                                        June    September    September
# million                               2003         2003         2003

Loss on ordinary activities
attributable to the
shareholders
Group                                    (80)          (5)         (85)
Share of joint ventures                    -           (2)          (2)
Share of associates                       (8)          (3)         (11)
                                         (88)         (10)         (98)

Exchange differences on                   10           (5)           5
translation

Actuarial gain recognised on               -           12           12
retirement benefit schemes
                                  ----------   ----------   ----------
TOTAL RECOGNISED GAINS AND               (78)          (3)         (81)
LOSSES
                                       =====        =====        =====
NON-NARF RECONCILIATION OF MOVEMENTS IN NET ASSETS
                                           3            3            6
                                      months       months       months
                                          to           to           to
                                          30           30           30
                                        June    September    September
# million                               2003         2003         2003

Total recognised gains and               (78)          (3)         (81)
losses
Shares to be issued                        1            7            8
New share capital and share            3,720            -        3,720
premium
Additional investment in NARF           (569)           -         (569)
excluded from supplementary net
asset statement
                                  ----------   ----------   ----------
Total movement in the period           3,074            4        3,078

Equity shareholders' interests at     (2,954)         120       (2,954)
beginning of period
                                  ----------   ----------   ----------
Equity shareholders' interests at        120          124          124
end of period
                                       =====        =====        =====

INDEPENDENT REVIEW REPORT TO MARCONI CORPORATION PLC

Introduction

We have been instructed by the company to review the financial information for
the six months ended 30 September 2003 which comprises the profit and loss
account, the balance sheet, the statement of total recognised gains and losses,
the cash flow statement and the related notes 1 to 19, 20A and 20C together with
the reconciliation of net cash flow to movements in net monetary funds / (debt)
and the reconciliation of movements in equity shareholders' funds. We have read
the other information contained in the interim report and considered whether it
contains any apparent misstatements or material inconsistencies with the
financial information.

This report is made solely to the company in accordance with Bulletin 1999/4
issued by the Auditing Practices Board. Our work has been undertaken so that we
might state to the company those matters we are required to state to them in an
independent review report and for no other purpose. To the fullest extent
permitted by law, we do not accept or assume responsibility to anyone other than
the company, for our review work, for this report, or for the conclusions we
have formed.

Directors' responsibilities

The interim report, including the financial information contained therein, is
the responsibility of, and has been approved by, the directors. The directors
are responsible for preparing the interim report in accordance with the Listing
Rules of the Financial Services Authority which require that the accounting
polices and presentation applied to the interim figures are consistent with
those applied in preparing the preceding annual accounts except where any
changes, and the reasons for them, are disclosed.

Review work performed

We conducted our review in accordance with the guidance contained in Bulletin
1999/4 issued by the Auditing Practices Board for use in the United Kingdom. A
review consists principally of making enquiries of group management and applying
analytical procedures to the financial information and underlying financial data
and, based thereon, assessing whether the accounting policies and presentation
have been consistently applied unless otherwise disclosed. A review excludes
audit procedures such as tests of controls and verification of assets,
liabilities and transactions. It is substantially less in scope than an audit
performed in accordance with United Kingdom auditing standards and therefore
provides a lower level of assurance than an audit. Accordingly, we do not
express an audit opinion on the financial information.

Review conclusion

On the basis of our review we are not aware of any material modifications that
should be made to the financial information as presented for the six months
ended 30 September 2003.

Deloitte & Touche LLP
Chartered Accountants
Birmingham
12 November 2003



                      This information is provided by RNS
            The company news service from the London Stock Exchange

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IR FFEEDESDSESF