GC_ONE REPORT 2021_ENG

Company Relationship As at 31st December 2021 Connected Transaction 2019 2020 2021 (million baht) 13.PTT Exploration and Production Public Company Limited (PTTEP) Major shareholder (PTT) holds 63.79% of the shares Sales/Purchase transaction of products and services Statements of Income Transactions Sales of goods or rendering of services 13 8 14 Other expense 8 4 4 Statements of Financial Position Balances Trade accounts receivable – related parties 1 2 3 Other accounts receivable – related parties - - 1 Lease liabilities - related parties - 3 - 14.PTT Tank Terminal Company Limited (PTT TANK) Major shareholder (PTT) holds 100% of the shares Common Director: 1. M.L. Peekthong Thongyai Sales/Purchase transaction of products and services Statements of Income Transactions Sales of goods or rendering of services 47 48 70 Other expense - - 8 Statements of Financial Position Balances Trade accounts receivable – related parties 6 5 15 Other accounts payable – related parties 1 - - 15.PTT International Trading Pte. (PTTT) Major shareholder (PTT) holds 100% of the shares Common Director: 1. Mr. Disathat Panyarachun Sales/Purchase transaction of products Statements of Income Transactions Sales of goods or rendering of services 9,889 9,962 19,354 Purchases of goods or services 1,317 33 378 Other income 2 5 28 Other expense 13 - 3 Statements of Financial Position Balances Trade accounts receivable – related parties 2,374 1,217 1,004 Other accounts receivable – related parties 93 - 89 Trade accounts payable – related parties 221 - - Other accounts payable – related parties 29 174 263 16.PTT LNG Company Limited (PTTLNG) Major shareholder (PTT) holds 100% of the shares Sales/Purchase transaction of products and services Statements of Income Transactions Sales of goods or rendering of services 4 6 8 Other income - - 3 Statements of Financial Position Balances Trade accounts receivable – related parties 3 5 3 Other accounts receivable – related parties - - 3 208 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021

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