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 November 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: November 6, 2017

2

Exhibit Index

Exhibit No.	Description
Exhibit 99.1	Press release dated November 6, 2017 —JA Solar to Host Third Quarter 2017 Results Conference Call on November 15, 2017

3

EX-99.1

Exhibit 99.1

JA Solar to Host Third Quarter 2017 Results Conference Call on November 15, 2017

BEIJING, November 6, 2017(GLOBENEWSWIRE) — JA Solar Holdings Co., Ltd. (Nasdaq:JASO) (“JA Solar” or “JA”), one of the world’s largest manufacturers of high-performance solar power products, today announced that it will report its financial results for the third quarter ended September 30, 2017 before the U.S. market open on Wednesday, November 15, 2017.

JA Solar’s management will host an earnings conference call on November 15, 2017 at 8:00 a.m. U.S. Eastern Time (9:00 p.m. China Time).

Dial-in details for the earnings conference call are as follows:

	Phone Number	Toll-Free Number
United States	+1 8456750437	+1 8665194004
Hong Kong	+852 30186771	+852 800906601
Mainland China	+86 8008190121 +86 4006208038
Other International	+65 67135090

Please dial in 10 minutes before the call is scheduled to begin and provide the passcode to join the call. The passcode is 7597129.

A replay of the conference call may be accessed by phone at the following numbers until November 23, 2017.  To access the replay, please reference the conference ID 7597129.

	Phone Number	Toll-Free Number
United States	+1 6462543697	+1 8554525696
Hong Kong	+852 30512780	+852 800963117
Mainland China	+86 8008700206
	+86 4006322162
Other International	+61 281990299

Additionally, a live and archived webcast of the conference call will be available on the Investor Relations section of the Company’s website at http://www.jasolar.com.

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 Hanoi, Vietnam.

For more information, please visit www.jasolar.com.

CONTACT:

The Blueshirt Group

Ralph Fong

Phone: +1 (415) 489-2195

Email: ralph@blueshirtgroup.com