1. JA SolarModule OverviewMarch 2011

2. Introduction to JA Solar

3. Introduction to JA Solar One of the Leading Solar Companies in the World Headquarters Date Est’d / IPO Business 2010 Shipments Attributes Annual Capacity Conversion Efficiency Ticker Symbol Employees

4. Introduction to JA Solar Optimized Vertical Integration Model POLYSILICON SILICON WAFERS CELL SYSTEMS MODULE Solar Cells PV Modules Solar Wafers

5. Production Plant Nationwide Lianyungang Wafer Facility 300MW Capacity NingjinCell Facility 850MW Capacity Hefei Plant 3GW Capacity (in construction) Shanghai Head Quarter Yangzhou Cell Facility 1250MW Capacity State-of-the-art PV R&D Center Shanghai Module Facility 500MW Capacity

6. Substantial Shipment Growth & Market Share Gain - CAGR over 90% Top 10 producers in 2010 by PHOTON

8. JA Modules

10. Successful capacity ramp-up with strong demand from a diverse customer base

11. Significantly increased shipment and revenue opportunity with direct access to end customers

12. 800MW Module capacity

13. World-class quality system

16. Automated production lines

17. Average 18.6%/17.5% for high efficiency products for mono/multi

18. Comprehensive service network worldwide

21. Cell (mm) Mono 125*125 SL

23. Cell (mm) Poly 156*156

25. Cell (mm) Mono 156*156

27. Cell (mm) Mono 156*156

28. Dimensions (L*M*H) (mm) 1650* 991*40

29. High efficiency crystalline silicon cells.

30. Without screw frame design, strong mechanical resistance.

31. High transmission low iron temple glass, strong mechanical resistance.

32. Standard waterproof junction box, with bypass diode.

34. Cell (mm) Mono 156*156

35. Dimensions (L*M*H) (mm) 1970* 991*50

36. High efficiency crystalline silicon solar cells.

37. High transmission low iron tempered glass, strong mechanical resistance.

38. Standard waterproof junction box, with bypass diode.

40. May 10, 2011 Customer Base JA has added a substantial number of new customers over past two years, including BP Solar, Solar-Fabrik, MEMC/SunEdison, leading European Tier-1 solar OEMs; as well as new customers in Germany, Italy, France, Korea, Japan, India, and U.S.

41. Customer Base 2010 2011

42. Strategic partnership with customers Adequate and stable supply Module quality guaranteed by high- performance JA cells JA cell capacity (2.1GW) well exceeds module capacity Grow with customers Adhere to promises Honest and frank Enhanced warranty Module insurance with Power Guard Price forecast Price forecast for long-term contracts Europe distribution center Safe and express logistics Fulfill the urgent demands Pursuit for excellence Power Tolerance: -2~+3W Social responsibility Member of PV Cycle

44. Specialized Team for Customer Serviceservice@jasolar.com

45. Project: CAMPANIA May 10, 2011 Customer: MEMC Electronic Materials Inc./ SUNEDISON Contractor: ISOLUX Type of installation: FIX TILT GROUND MOUNT Date: DECEMBER 2010 Location: GIULIANO-NAPLES (CAMPANIA –ITALY) Size: 20.4MWp Type of module: JA SOLAR 225-230-235-240 Quantity of module: 88.200

46. Project: Solar Park Watzmannsberg Customer: Envalue Time: May, 2010 Type of module:JAP6-225 & JAM6-240 May 10, 2011 Address of project: Watzmannsberg 3, 94474 Vilshofen Quantity of module: JAP-225:3264 pcs,.JAM6-240:3120 pcs Size: 1.48MWp

47. Thank you!