Investor Presentaiton

Product Advantages - High Yield Efficiency JA SOLAR Normalized EQE Outstanding Low-light Performance 0.8 0,5 0.4 9 3 3 3 3 3 3 3 2 2 1.0 0.9 PERCIUM Normal Mono 0.0 300 400 500 600 700 800 900 1000 1100 Current [A] Relative efficiency (%) Conventional Mono Conventional Poly PERCIUM Mono 102% 101% 100% 99% 98% 97% 98% 95% 94% 93% 100 200 300 400 500 600 700 800 900 1000 1100 Irradiance (W/M²) Relative module efficency comparison under different irradiance Wavelength (nm) EQE-External quantum efficiency The modules are classified into three current category Current class-H (high) ✓ ✓ Current class-M (middle) ✓ Current class-L (low) 9 8765432101234567 Current class-M Source: TUVRheinland 11

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