Information
81 Namdaemun-ro, Jung District, Seoul, South Korea
+82 2-727-7807
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Overview
- Summary
- OCI Co., Ltd. is a global key materials company producing various chemical products, including semiconductor materials, secondary battery materials, carbon materials, and other specialty chemicals. The company is expanding its business from traditional inorganic chemical products to advanced chemical materials. Following its spin-off in 2023, OCI has positioned semiconductor and secondary battery materials as its next-generation growth engines. Continuous investment in R&D and technological innovation aims at securing future growth drivers.OCI Co., Ltd. is a global key materials company producing various chemical products, including semiconductor materials, secondary battery materials, carbon materials, and other specialty chemicals. The company is expanding its business from traditional inorganic chemical products to advanced chemical materials. Following its spin-off in 2023, OCI has positioned semiconductor and secondary battery materials as its next-generation growth engines. Continuous investment in R&D and technological innovation aims at securing future growth drivers.
- Key Products/Technologies
- Semiconductor Materials: Polysilicon, a core raw material for semiconductor wafers, with unique domestic production technology. Phosphoric acid, used in semiconductor etching processes, holds the top market share in Korea, with plans to expand annual production from 25,000 tons to 30,000 tons. Ultra-high purity hydrogen peroxide for semiconductor and display processes, semiconductor precursors (HCDS) for deposition processes, and fumed silica for etching processes are also key advanced materials supplied.Semiconductor Materials: Polysilicon, a core raw material for semiconductor wafers, with unique domestic production technology. Phosphoric acid, used in semiconductor etching processes, holds the top market share in Korea, with plans to expand annual production from 25,000 tons to 30,000 tons. Ultra-high purity hydrogen peroxide for semiconductor and display processes, semiconductor precursors (HCDS) for deposition processes, and fumed silica for etching processes are also key advanced materials supplied.
- Secondary Battery Materials: High-softening point pitch, a core material for secondary battery anodes, successfully commercialized as the world's first liquid pitch. SiH4 (special material for silicon anode), a primary raw material for silicon anodes, with a 1,000-ton per year plant under construction and a long-term supply agreement with Nexeon (UK). Caustic soda is also included in the secondary battery material product group.Secondary Battery Materials: High-softening point pitch, a core material for secondary battery anodes, successfully commercialized as the world's first liquid pitch. SiH4 (special material for silicon anode), a primary raw material for silicon anodes, with a 1,000-ton per year plant under construction and a long-term supply agreement with Nexeon (UK). Caustic soda is also included in the secondary battery material product group.
- Carbon Materials: Carbon black, used in tires, plastic colorants, and semiconducting screens for electric cables, boasts the largest production capacity and market share in Korea. The company is expanding its business into high-value-added products like conductive carbon black. Pitch, refined from coal tar (a byproduct of steel manufacturing), serves as a raw material for binder in aluminum smelting electrodes. Various products, including BTX (benzene, toluene, xylene) and plasticizers, are produced by recycling steel byproducts.Carbon Materials: Carbon black, used in tires, plastic colorants, and semiconducting screens for electric cables, boasts the largest production capacity and market share in Korea. The company is expanding its business into high-value-added products like conductive carbon black. Pitch, refined from coal tar (a byproduct of steel manufacturing), serves as a raw material for binder in aluminum smelting electrodes. Various products, including BTX (benzene, toluene, xylene) and plasticizers, are produced by recycling steel byproducts.
- Core Advantages
- Unique Technology: Exclusive domestic production technology and original technology for semiconductor-grade polysilicon. World's first successful commercialization of liquid pitch, demonstrating technological leadership.Unique Technology: Exclusive domestic production technology and original technology for semiconductor-grade polysilicon. World's first successful commercialization of liquid pitch, demonstrating technological leadership.
- Market Leadership and Share: Achieved the No. 1 market share in domestic semiconductor-grade phosphoric acid. Based on the largest carbon black production capacity and market share in Korea, the company maintains strong networks with leading global tire manufacturers.Market Leadership and Share: Achieved the No. 1 market share in domestic semiconductor-grade phosphoric acid. Based on the largest carbon black production capacity and market share in Korea, the company maintains strong networks with leading global tire manufacturers.
- Transition to High-Value Specialty Products: Pursuing a business structure transformation from general-purpose chemical products to high-value-added specialty products. Efforts to enhance profitability through the development of new high-value products such as conductive carbon black and special materials for silicon anodes.Transition to High-Value Specialty Products: Pursuing a business structure transformation from general-purpose chemical products to high-value-added specialty products. Efforts to enhance profitability through the development of new high-value products such as conductive carbon black and special materials for silicon anodes.
- Stable Raw Material Supply and Cost Competitiveness: Efforts to reduce polysilicon manufacturing costs, with electricity accounting for approximately 30%. Securing cost competitiveness in carbon black production through flexible use of raw materials like petroleum-based and steel byproducts.Stable Raw Material Supply and Cost Competitiveness: Efforts to reduce polysilicon manufacturing costs, with electricity accounting for approximately 30%. Securing cost competitiveness in carbon black production through flexible use of raw materials like petroleum-based and steel byproducts.
- Global Network and Export Capabilities: Established a global supply chain for liquid pitch, exporting to major aluminum companies in the Middle East, Australia, and North America. A global chemical company with exports accounting for over 70% of its total revenue.Global Network and Export Capabilities: Established a global supply chain for liquid pitch, exporting to major aluminum companies in the Middle East, Australia, and North America. A global chemical company with exports accounting for over 70% of its total revenue.
- Continuous R&D Investment and Collaboration: Focus on new product development and process improvement through its central research institute. Collaboration with major domestic and international semiconductor and battery manufacturers for new product development and validation.Continuous R&D Investment and Collaboration: Focus on new product development and process improvement through its central research institute. Collaboration with major domestic and international semiconductor and battery manufacturers for new product development and validation.
- Commitment to ESG Management: Transitioning to high-value-added material businesses through steel byproduct recycling. Aiming for carbon neutrality by 2050, strengthening environmental protection and sustainable management capabilities.Commitment to ESG Management: Transitioning to high-value-added material businesses through steel byproduct recycling. Aiming for carbon neutrality by 2050, strengthening environmental protection and sustainable management capabilities.
- Target Industrie
- Semiconductor Industry: Supply of core materials such as polysilicon, phosphoric acid, hydrogen peroxide, semiconductor precursors, and fumed silica.Semiconductor Industry: Supply of core materials such as polysilicon, phosphoric acid, hydrogen peroxide, semiconductor precursors, and fumed silica.
- Secondary Battery Industry: Supply of anode materials and battery manufacturing materials like high-softening point pitch, SiH4, and caustic soda.Secondary Battery Industry: Supply of anode materials and battery manufacturing materials like high-softening point pitch, SiH4, and caustic soda.
- Display Industry: Supply of ultra-high purity hydrogen peroxide.Display Industry: Supply of ultra-high purity hydrogen peroxide.
- Automotive Industry: Supply of carbon black for tires and automotive parts manufacturing, and pitch for aluminum smelting.Automotive Industry: Supply of carbon black for tires and automotive parts manufacturing, and pitch for aluminum smelting.
- Plastics Industry: Supply of carbon black for coloring agents.Plastics Industry: Supply of carbon black for coloring agents.
- Electric Cable Industry: Supply of carbon black for semiconducting screens.Electric Cable Industry: Supply of carbon black for semiconducting screens.
- Aluminum Smelting Industry: Supply of pitch as a raw material for electrode binders.Aluminum Smelting Industry: Supply of pitch as a raw material for electrode binders.
- Steel Industry: Production of BTX and pitch through byproduct recycling.Steel Industry: Production of BTX and pitch through byproduct recycling.
- Major Markets
- South Korea, China, Philippines, Malaysia, VietnamSouth Korea, China, Philippines, Malaysia, Vietnam
- United StatesUnited States
- AustraliaAustralia
- Certifications/Patents
- 458 Registered Patents: A total of 290 domestic and 168 international registered patents.458 Registered Patents: A total of 290 domestic and 168 international registered patents.
- 147 Patent Applications: A total of 54 domestic and 93 international patent applications.147 Patent Applications: A total of 54 domestic and 93 international patent applications.
- A-Grade ESG Rating: Achieved an A-grade in Sustainalytics' 2025 first-half ESG evaluation, a leading domestic ESG rating agency.A-Grade ESG Rating: Achieved an A-grade in Sustainalytics' 2025 first-half ESG evaluation, a leading domestic ESG rating agency.
- DJSI Inclusion: Consistently included in the Dow Jones Sustainability Index (DJSI), recognizing excellent sustainable management capabilities.DJSI Inclusion: Consistently included in the Dow Jones Sustainability Index (DJSI), recognizing excellent sustainable management capabilities.
- Grand Medal of Honor from the Korean Red Cross: OCI's Gunsan plant received the Grand Medal of Honor from the Korean Red Cross.Grand Medal of Honor from the Korean Red Cross: OCI's Gunsan plant received the Grand Medal of Honor from the Korean Red Cross.
- Original Technology for Semiconductor-Grade Polysilicon Manufacturing: Possessing the unique original technology for manufacturing semiconductor-grade polysilicon in Korea.Original Technology for Semiconductor-Grade Polysilicon Manufacturing: Possessing the unique original technology for manufacturing semiconductor-grade polysilicon in Korea.
- World's First Commercialization of Liquid Pitch: Demonstrating leading technological prowess in high-value-added material sectors.World's First Commercialization of Liquid Pitch: Demonstrating leading technological prowess in high-value-added material sectors.
Introduction
Location
81 Namdaemun-ro, Jung District, Seoul, South Korea
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