General ownership structure Company Share, % Bangkok Dusit Medical Services Public Company Limited 2.44 China Oilfield Services Limited 1.24 AngloGold Ashanti Limited 0.4 Shenzhou International Group Holdings Limited 0.38 Guangdong Investment Limited 0.34 Sunny Optical Technology (Group) Company Limited 0.32 Sunny Optical Technology (Group) Company Limited 0.31 China Construction Bank Corporation 0.11 Sector share Category Quantity Technology 2 Healthcare 1 Energy 1 Materials 1 Consumer Cyclical 1 Utilities 1 Financials 1