6-K

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of April 2017

Commission File Number: 001-33290

JA Solar Holdings Co., Ltd.

Building No.8, Noble Center, Automobile Museum East Road
Fengtai, Beijing 100070
The People’s Republic of China

Indicate by check mark whether the registrant files or will file annual reports under cover of 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 papers 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 papers as permitted by Regulation S-T Rule 101(b)(7): o

Indicate by check mark whether the registrant by furnishing the information contained in this form 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 registrant in connection with Rule 12g3-2(b): 82-          .

N/A

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the under-signed, thereunto duly authorized.

	JA Solar Holdings Co., Ltd.
	By	/s/ Baofang Jin
		Name: Baofang Jin
		Title: Chief Executive Officer
Date: April 27, 2017

2

Exhibit Index

Exhibit 99.1 — Press Release

3

EX-99.1

Exhibit 99.1

JA Solar Files Annual Report on Form 20-F

BEIJING, China, April 27, 2017 (GLOBAL NEWSWIRE)— JA Solar Holdings Co., Ltd. (Nasdaq: JASO) (“JA Solar” or the “Company”), one of the world’s largest manufacturers of high-performance solar power products, today announced that it filed its annual report on Form 20-F for the fiscal year ended December 31, 2016 with the Securities and Exchange Commission of the United States. The annual report can be accessed on JA Solar’s investor relations website at http://investors.jasolar.com/. JA Solar will provide a hard copy of the annual report containing its audited consolidated financial statements, free of charge, to its shareholders and ADS holders upon request.

Forward-looking Statements

This press release contains forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by words such as “may,” “expect,” “anticipate,” “aim,” “intend,” “plan,” “believe,” “estimate,” “potential,” “continue,” and other similar statements. Statements other than statements of historical facts in this announcement are forward-looking statements, including but not limited to, our expectations regarding the expansion of our manufacturing capacities, our future business development, and our beliefs regarding our production output and production outlook. These forward-looking statements involve known and unknown risks and uncertainties and are based on current expectations, assumptions, estimates and projections about the Company and the industry. Further information regarding these and other risks is included in Form 20-F and other documents filed with the Securities and Exchange Commission. The Company undertakes no obligation to update forward-looking statements, except as may be required by law. Although the Company believes that the expectations expressed in these forward-looking statements are reasonable, it cannot assure you that its expectations will turn out to be correct, and investors are cautioned that actual results may differ materially from the anticipated results.

Currency Convenience Translation

The conversion of Renminbi into U.S. dollars in this release, made solely for the convenience of the reader, is based on the noon buying rate in the city of New York for cable transfers of Renminbi as certified for customs purposes by the Federal Reserve Bank of New York as of December 30, 2016, which was RMB 6.943 to $1.00. No representation is intended to imply that the Renminbi amounts could have been, or could be, converted, realized or settled into U.S. dollars at that rate on December 30, 2016, or at any other date. The percentages stated in this press release are calculated based on Renminbi.

About JA Solar Holdings Co., Ltd.

JA Solar Holdings Co., Ltd. is a leading manufacturer of high-performance solar power products that convert sunlight into electricity for residential, commercial, and utility-scale power generation. The Company is one of the world’s largest producers of solar power products. Its standard and high-efficiency product offerings are among the most powerful and cost-effective in the industry. The Company distributes products under its own brand and also produces on behalf of its clients. The Company shipped 5.2 GW of solar power products in 2016. JA Solar is headquartered in Beijing, China, and maintains production facilities in Shanghai, Hebei, Jiangsu and Anhui provinces in China, as well as Penang, Malaysia and Viet Yen, Vietnam.

For more information, please contact:

The Blueshirt Group

Ralph Fong

Phone: +1 (415) 489-2195

Email: ralph@blueshirtgroup.com