GC One Report 2023 [EN]

As a downstream product of ethylene, ethylene Oxide (EO) is used as feedstock for ethylene glycol (EG) and other downstream products, namely mono ethylene glycol (MEG), diethylene glycol (DEG), triethylene glycol (TEG), and polyethylene glycol (PEG). Among these products, MEG is the main feedstock and is used in combination with purified terephthalic acid (PTA) for the production of polyester textile or PET bottles. In 2023, for the production of ethylene oxide (EO) and derivatives, GC commercially operated one plant located in WHA Eastern Industrial Estate, Rayong. The production capacity is detailed in the table below: Policy and Marketing For ethylene oxide and downstream products, the policy is to sell its products to domestic business owners at prices and under trade conditions that are competitive with other manufacturers. As Thailand’s first and only producer, GC uses its strengths and business advantages in marketing, such as its position as a domestic producer of high-purity products, and the ability to deliver products continuously from its storage tanks. In 2023, approximately 95% of the ethylene glycol produced was sold domestically, accounting for a 58% domestic market share, while the remaining amount was sold in international markets where it would yield maximum benefits, such as ASEAN and Australia. Phenols Phenol is used as feedstock for the production of other downstream products, such as engineering plastics. These products are in high demand in high-growth industries, including automotive, electrical appliance and electronics, and construction. The key products are listed below: Phenol Phenol, an intermediate petrochemical derived from benzene and propylene, is a key feedstock for bisphenol A (BPA), phenolic resin, and various derivatives for the plastic, pharmaceuticals, and chemical industries. Acetone Acetone, a by-product from phenol production, is a very common solvent in various industries, such as chemical, cosmetics, and medical industries. Acetone is also used as feedstock for bisphenol A and methyl methacrylate, used in plastics and coating industries, among others. Bisphenol A Bisphenol A is an intermediate petrochemical and feedstock for polycarbonate (PC), an engineering plastic used in various industries, such as the automotive industry, electrical appliance and electronics industry, and construction industry. BPA is also a key feedstock for epoxy resin, which is used in composite materials, coatings, and the paint industry. Company Product Nameplate Capacity (thousand tons per year) GC Mono Ethylene Glycol (MEG) 423 49 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2023

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