EXPERIENCE Telecommunication Telecommunication True CorporationDTACAdvanced Info ServiceTotal Access Communication PublicCompany Limited and Cat Telecom Co., Ltd.THAICOMCS-LOXINFO True CorporationDTACAdvanced Info ServiceTotal Access Communication PublicCompany Limited and Cat Telecom Co., Ltd.THAICOMCS-LOXINFO Finance Finance KRUNGTHAIKASIKORNBANKBANK of AYUDHAYASIAM COMMERCIAL BANKGoverment Saving BankBank of ThailandThe Stock Exchange of Thailand KRUNGTHAIKASIKORNBANKBANK of AYUDHAYASIAM COMMERCIAL BANKGoverment Saving BankBank of ThailandThe Stock Exchange of Thailand Utility Utility PTT Public Compay LimitedESSOBangchak Corporation Public Company LimitedGlow Energy PCLProvincial Electricity Authority (PEA)Electricity Generating Authority of Thailand PTT Public Compay LimitedESSOBangchak Corporation Public Company LimitedGlow Energy PCLProvincial Electricity Authority (PEA)Electricity Generating Authority of Thailand Transportation Transportation Airports of ThailandAeronautical Radio of ThailandMass Rapid Transit Authority of Thailand (MRT)Bangkok Mass Transit System (BTS) Airports of ThailandAeronautical Radio of ThailandMass Rapid Transit Authority of Thailand (MRT)Bangkok Mass Transit System (BTS) Others Others PTT Public Company LimitedESSOBangchak Corporation Public Company LimitedGlow EnergyProvincial Electricity Authority (PEA)Electricity Generating Authority of Thailand PTT Public Company LimitedESSOBangchak Corporation Public Company LimitedGlow EnergyProvincial Electricity Authority (PEA)Electricity Generating Authority of Thailand Telecommunication True Corporation DTAC Advanced Info Service Total Access Communication Public Company Limited and Cat Telecom Co., Ltd. THAICOM CS-LOXINFO Finance KRUNGTHAIKASIKORNBANKBANK of AYUDHAYASIAM COMMERCIAL BANKGovernment Saving BankBank of ThailandThe Stock Exchange of Thailand Utility PTT Public Compay LimitedESSOBangchak Corporation Public Company LimitedGlow Energy PCLProvincial Electricity Authority (PEA)Electricity Generating Authority of Thailand Transportation Airports of ThailandAeronautical Radio of ThailandMass Rapid Transit Authority of Thailand (MRT)Bangkok Mass Transit System (BTS) Others PTT Public Company LimitedESSOBangchak Corporation Public Company LimitedGlow EnergyProvincial Electricity Authority (PEA)Electricity Generating Authority of Thailand