December 10, 2012 Securities & exchange Commission 450 Fifth Street, NW Washington, DC 20549 Attn.: Document Control RE: American Depositary Shares evidenced by the American Depositary Receipts each representing One (1) Ordinary Share of JA Solar (Form F6 File No. 333140009) Ladies and Gentlemen: Pursuant to Rule 424(b)(3) under the Securities Act of 1933, as amended, on behalf of The Bank of New York, as Depositary for securities against which American Depositary Receipts are to be issued, we attach a copy of the new prospectus (Prospectus) reflecting in number of ordinary shares represented by one American Depositary Share (the Ratio). As required by Rule 424(e), the upper right hand corner of the Prospectus cover page has a reference to Rule 424(b)(3) and to the file number of the registration statement to which the Prospectus relates. Pursuant to Section III B of the General Instructions to the Form F6 Registration Statement, the Prospectus consists of the ADR certificate with revised ratio for JA Solar. The Prospectus has been revised to reflect the new ratio and has been overstampted with: Effective December 10, 2012 the Companys American Depositary Share (ADS) Ratio Changed from 1:1 (One ADS Representing One Share to 1:5 (One ADSs Representing Five Shares). Please contact me with any questions or comments at 212 8152476 Joanne Wang The Bank of New York Mellon ADR Division Encl. CC: Paul Dudek, Esq. (Office of International Corporate Finance) 101 Barclay Street, New York NY 10286