DISCLOSURES (TCFD) IMPLEMENTATION  TRUE BECAME AN OFFICIAL TCFD SUPPORTER IN JULY 2021  1/16 COMPANIES IN THAILAND  BENEFITS:  PREVENT & REDUCE BUSINESS RISK  CREATE OPPORTUNITIES  SELF-ASSESSMENT

: 18 July 2018 2. Financial Supporter, Connected Transaction Parties: Jaymart Public Company Limited which is major shareholder of the Company held 67.5% (Lender) 3. Financial Receiver: JAS Asset Public

contract term, profitability of the contract remains the same. By the Standard, key changes compared to prior to 2019, are as follows: a) Device subsidy previously recognized as handset loss will be

resulted in reallocation between sales and service revenue as well as marketing expenses while device subsidy is capitalized as contract assets and amortized against the service revenue over the customer

169 163 151 148 136 Blended 186 181 170 168 156 VOU (GB/data sub/month) Postpaid 6.7 7.5 8.3 9.2 10.9 Prepaid 4.1 5.4 6.2 7.0 8.2 Blended 4.7 5.9 6.7 7.6 8.9 Device Penetration 4G-handset penetration 39

12.7 Prepaid 5.4 6.2 7.0 8.2 9.2 Blended 5.9 6.7 7.6 8.9 10.1 Device Penetration 4G-handset penetration 42% 46% 50% 54% 57% Fixed Broadband Business FBB subscribers 481,500 521,200 571,800 623,400

, AIS fully expensed handset subsidy as either handset loss or marketing expense. With the effect of TFRS 15, key financial changes, compared to prior to 2019, will be as follows: a) Device subsidy

value added to medical service business from the Company as being supporter of medical engineering for dialysis unit and operating dialysis unit business by KT Medical services Co., Ltd. (“KTMS

increase opportunity and channel in contributing value added to medical service business from the Company as being supporter of medical engineering for dialysis unit and operating dialysis unit business by

Office uses to increase or decrease the weight in considering the facts in general: (a) the involvement of a person in the prohibited characteristics such as being a principal, an user or a supporter, etc