CHC China Hydroelectric Corp. American Depositary Share (Each Representing Three Ordinary Shares)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

For the month of August 2013

Commission File Number: 001-34609

China Hydroelectric Corporation

Bldg A #2105, Ping’An International Financial Center

No. 3 Xinyuan South Road, Chao Yang District, Beijing

People’s Republic of China 100027

Tel: (86-10) 6492-8483

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  x  Form 40-F  o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes  o  No  x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):82- N/A

China Hydroelectric Corporation

Form 6-K

China Hydroelectric Corporation is furnishing under cover of Form 6-K the following:

Exhibit 99.1         Press release dated August 21, 2013

2