No. Company name and relationship Transaction (Unit: Million Baht) Characteristics and conditions 2023 2022 2021 5. Thaioil Marine Co., Ltd. (TOM) (1) Relationship: Thaioil Public Company Limited holds 99.99% of shares - Service income - - 11 IRPC provided port services to TOM. 6. Top Next International Co., Ltd. (TX) (2) Relationship: Thaioil Solvent Co., Ltd. holds 99.99% of shares - Sale of goods - Purchase of goods - Accounts receivable - Accounts payable 1,489 88 89 9 1,730 147 117 11 1,247 114 104 14 IRPC sold aromatics products to TX. IRPC purchased solvent products from TX. 7. Top Solvent Vietnam Co., Ltd. (TSV) Relationship: TOP Solvent Co., Ltd. holds 99.99% of shares. - Sale of goods - Accounts receivable - - 136 - 568 26 IRPC sold aromatics products to TSV. 8. Sak Chaisidhi Co., Ltd. (SAKC) Relationship: TOP Solvent Co., Ltd. holds 80.52% of shares - Sale of goods - Accounts receivable 475 5 408 4 222 3 IRPC sold aromatics products to SAKC. 9. Ubon Bio Ethanol Public Company Limited (UBE) (3) Relationship: Thaioil Ethanol Co., Ltd. holds 12.39% of shares. - Purchase of goods - - 99 IRPC purchased ethanol products from UBE. 10. PTT Energy Solutions Co., Ltd. (PTTES) (4) Relationship: PTT Public Company Limited holds 40.00% of shares. IRPC Public Company Limited holds 20.00% of shares. - Common director: Mr. Kris Imsang - Other income - Sales and admin expenses - Other receivables - - - 4 80 1 4 82 2 IRPC received income for personnel expenses from PTTES. IRPC paid for technical service fees to PTTES. 11. Energy Complex Co., Ltd. (EnCo) Relationship: PTT Public Company Limited holds 50.00% of shares. - Common director: Mr. Chansak Chuenchom - Sales and admin expenses - Amortization of licensed assets - Interest paid according to the lease agreement - Licensed assets - Liabilities according to lease agreements - Accrued interest according to the lease agreement - Contract security deposit 59 28 1 27 28 - 20 65 31 2 66 68 2 20 64 30 1 3 3 - 20 IRPC signed office rental and service agreements with EnCo for a period of three years (Feb 2022 - Jan 2025). 273 Internal Control and Connected Transactions 56-1 ONE REPORT 2023
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