FEEDSTOCK SOURCING The PE plants primarily use ethylene produced by olefins plants in GC Group. The PP plant uses propylene from producers in Map Ta Phut and olefin plants in GC Group. The PTA plant uses paraxylene (PX) produced within GC Group as the primary feedstock. The PET plant relies on two main feedstocks, namely PTA obtained from PTA plants in GC Group and MEG obtained from MEG plants in GC Group. The PS plant uses styrene monomer (SM) as the primary feedstock, obtained both through purchase agreements with domestic producers and through imports from various regions to ensure supply stability and competitiveness. The rotomolding compound plants use LLDPE as the primary feedstock which partially procured from external sources The PP compounding plant obtains PP partially from PP plants in GC Group. POLICY AND MARKETING The Polymers Business Unit operates an integrated production and distribution business, as well as develops products consistently to meet customer needs. GC operates marketing and sale via GC Marketing Solutions Company Limited (GCM), a subsidiary in GC Group that plays a key role in domestic and international marketing and distributing the majority of GC Group’s polymer products and by-products. Currently, GCM has authorized dealers both in Thailand and every region across the world, with two dealership offices in the People’s Republic of China, namely in Shanghai and Guangzhou. In addition, GCM has five subsidiaries in Shanghai, the People’s Republic of China; Ho Chi Minh City, the Socialist Republic of Vietnam; Dubai, the United Arab Emirates; Jakarta, Indonesia; and Yangon, the Republic of the Union of Myanmar, to adequately cater to demand for GC’s products both domestically and internationally and maximize its trade opportunity. In terms of warehousing and transportation, GC has assigned GC Logistics Solutions Company Limited (GCL), a subsidiary of GC Group, to handle warehouse and transportation management for all its polymer products to create agility in the integrated logistics management as well as to enable GC to manage distribution and transportation costs to competitive levels and efficiently distribute its products to over 1,000 plastic forming manufacturers nationwide and overseas customers in over 80 countries across the world. In 2021, approximately 59% of PE products and 43% of PS products were exported. The focus was on export to better geographic segmentation such as Cambodia, Laos, Myanmar and Vietnam and also develop highvalue product (HVP) market by emphasize on these products: packaging, plastic pipes, beverage lids, rotomolding and also develop new commodity products to retain existing domestic customers. However, the polymer product selling price will define based on market price but vary by the demand or supply shifts of plastic pellets in that region or country. GC has also built upon and add value to its PE products by developing products closely with both rotomoulder and end user to ensure that specific requirements have been taken into account and also provide technical problem solving dramatically. PP compounds are considered an expansion business that creates value-added to GC Group’s PP products for penetrating into the automotive, electrical appliance, and electronic industries. GC has always been committed to environmental consciousness, sustainable development, and giving back to communities and society. Emphasizing in plastic waste reduction, GC has established several circularity system consecutively since 2018, such as Think Cycle Bank project, Plastic Reborn project in collaboration with PTTOR , Big Little Things project in collaboration with leading cosmetics brand, YOUTurn project and Community Waste Model project in collaboration with community enterprise recycle bank such as Chaklukya Temple community. In 2021, approximately 59% of PE products and 43% of PS products were exported 48 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021