GC_ONE REPORT 2021_ENG

Petroleum Product Usage Light Distillate Liquefied Petroleum Gas (LPG) Fuel Petrochemical feedstock (Olefins plants) Light Naphtha Gasoline blending component Petrochemical feedstock (Olefins plants) Reformate Gasoline blending component Petrochemical feedstock (Aromatics plants) Middle Distillate Jet Fuel Aviation fuel Diesel Fuel for industrial and transport sectors Heavy Distillate Fuel Oil Fuel for industrial sector and maritime transport FEEDSTOCK SOURCING In 2021, GC distilled crude about 49.6 million barrels and feedstock from the aromatics plants, equivalent to 95% of its capacity. The capacity was also adjusted to suit the demand during the COVID-19 pandemic. GC secured crude oil at market prices through a long-term feedstock supply agreement with PTT. POLICY AND MARKETING One of the GC’s key strategy is capital reduce by sourcing for low cost feedstocks from both domestic and international sources. In order to emphasize on domestic distribution, then local crude oil has been prioritized and also expand to CLMV market which has higher price opportunities. Furthermore, GC is the sole company in Thailand that ready to produce and distribute diesel fuel which has equivalent quality to EURO 5 and comply with the government regulation which will be announced in 2024. GC has collaborated with PTT Group in crude oil procurement and petroleum products distribution with competitive unit price and meet the market demand. In 2021, GC sold a total of 57 million barrels of petroleum products from its refinery, with diesel as the primary products, 79% of which were sold domestically, accounting for a 20% market share of the domestic sales. GC’s main customer was PTT Oil and Retail Business Public Company Limited (PTTOR), which has long-term purchase agreements with the Company. GC has plan to increase domestic sales to accommodate a rise in demand and expand to CLMV to grow its marketing base continuously. In 2021, GC sold a total of 57 million barrels of petroleum products from its refinery 37 BUSINESS OPERATION AND PERFORMANCE CORPORATE GOVERNANCE FINANCIAL REPORTS AND FINANCIAL STATEMENTS APPENDIX

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