JASO [JA Solar] 20-F: FORM 20-F (Mark One) o OR x OR
[FORM 20-F (Mark One) o OR x OR o OR o Date of event requiring this shell company report . . . . . . . . . . . . . . . . . . . For the transition period from to JA Solar Holdings Co., Ltd. The Cayman Islands (Jurisdiction of Incorporation or Organization) Building No.8, Noble] [1. 2. 3. 4. 5. 6. 7. 8]