IRPC Annual Report 2023

• Expandable Polystyrene (EPS) IRPC mainly uses Styrene Monomer as feedstock for its EPS, with Pentane gas as the blowing agent. The company uses no ozone-depleting CFCs. EPS has the following applications: - Packaging, such as shock-absorbing material in electrical appliance packaging, etc. - Block, such as insulation blocks in the fishing industry’s cold storage and modern construction to save energy consumption in cooling, soundproof against external noise, reduce the structure weight as well as lower construction cost, etc. Specialty Products IRPC stresses the importance of continuous research and development through Self-Development to cater to customers’ diverse requirements in the rapidly changing economic environment. The company aims to meet customers’ every need and expectation through ecofriendly approach. • Ultra-High Molecular Weight Polyethylene (UHMW-PE) is an opaque white powder with as much as 10 times the molecular density than other PE varieties. It can be subject to a range of treatments, such as Compression, RAM Extrusion, Gel Spinning, etc. Thanks to superior properties to those of iron joints and gears, UHMW-PE is suitable for a range of applications that require toughness, strength, and resistance to abrasion and chemical erosion. • Polypropylene Non-woven Polypropylene (PP) plastic pellets are developed for molding through a fiber manufacturing process as Non-woven or Spunbond fabric. Due to the properties of PP with lower density than other plastic types, and thus allowing the use of less feedstock and is lightweight. It also saves energy in a manufacturing process because of its low melting point. Therefore, it is popular for use to manufacture dailylife or single-use products such as disposable diapers, face masks, surgical gowns, veils, wet wipes, hospital bedspreads, and industrial shoe covers. • Bio Composite Resin A bio composite resin that contains surplus natural materials for optimal utilization with a view to conserving the environment, such as: - Pararene is a polystyrene pellet consisting of 20 percent natural materials, mainly cassava, corn, sugarcane, etc. This product has passed FDA testing and can be recycled like normal polystyrene plastic, and has been registered as a petty patent with the Department of Intellectual Property. - Polypropylene (PP) plastic pellets mixed with 1030 percent of “rice husk,” which yields a natural feel and appearance to product made therewith, which can be molded into various shapes according to customer requirements. It can also be reused or recycled. • Chlorine Resistance Pipe: Plastic pellets used for the production of high-pressure water supply pipes are resistant to chlorine-associated corrosion. This prolongs the service life of water supply pipes, reduces maintenance cost and ensures that drinking water is free from contaminants from corrosion. • Polypropylene Random Co-polymer Medical Grade: Transparent Polypropylene (PP) pellets developed specifically for medical equipment and related applications. Certified for international standards, such as FDA US21 CFR 177.1520 of the United States, EU No. 10/2011, and European Pharmacopeia 3.1.6 as well as USP Class VI of the European Union. • Pim-L and Pim-AL: Special-grade Acetylene Black products developed jointly by IRPC and the NSTDA specifically for use as a Carbon Conductive Additive in lithium-ion battery applications. • Post-consumer Recycled Compound: is made with used plastics that have been modified and thus have properties comparable to virgin plastic pellets. Available in PP and PS, this type of compound can help solve plastic waste problems and reduce environmental impact. 72 Structure and Business Operations of IRPC IRPC Public Company Limited

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