[SHARE PURCHASE AGREEMENT Agreement China THIS SHARE PURCHASE AGREEMENT (this “ (1) Purchaser th Lihai Investment Center (Shanghai) L.P. (the “ (2) Shanghai Buyout Fund Shanghai Buyout Fund L.P. (“ (3) Xizang Runda Seller Xizang Runda Energy Company limited (“ (4) Target Company th Shanghai Hai Sheng Tong Investment Co., Ltd., a company registered and established in Shanghai, China with] [13D CUSIP No. 81941U105 (1) Name of reporting person Shanghai Buyout Fund L.P. (2) Check the appropriate box if a member of a group (see instructions) x ¨ (a) (3) SEC use only (4) Source of funds (see instructions) Not applicable. (5) ¨ (6) Citizenship or place of organization The People’s Republic of China Number of shares beneficially owned by]

[SHARE PURCHASE AGREEMENT Agreement China THIS SHARE PURCHASE AGREEMENT (this “ (1) Purchaser th Litian Investment Center (Shanghai) L.P. (the “ (2) Seller th Orient Zhihui Investment Center (Shanghai) L.P. (the “ (3) Hong Kong Company Orient Hongzhi (Hong Kong) Limited, a company registered and established in Hong Kong (the “ (4) Target Company HuaSung Holdings Limited, a company registered] [SHARE PURCHASE AGREEMENT Agreement China THIS SHARE PURCHASE AGREEMENT (this “ Purchaser th (1) Lihua Investment Center (Shanghai) L.P. (the “ Seller th (2) Orient Zhisheng Investment Center (Shanghai) L.P. (the “ Hong Kong Company th (3) Orient Hongtai (Hong Kong) Limited, a company registered and established in Hong Kong (the “ Target Company (4) TonSung Holdings Limited, a company] [CUSIP No. 81941U105 (1) Name of reporting person Orient Finance Holdings (Hong Kong) Limited (2) Check the appropriate box if a member of a group (see instructions) x ¨ (a) (3) SEC use only (4) Source of funds (see instructions) Not applicable (5) ¨ (6) Citizenship or place of organization Hong Kong Number of shares beneficially owned by each reporting]