What OCI Holdings does

OCI Holdings Company Ltd. (KRX: 010060) is a South Korean publicly listed holding company, established in its current form in May 2023 through the spin-off of OCI Company Ltd. and headquartered in Seoul. Tracing its origins to Oriental Chemical Industries (founded 1959), the group operates a diversified platform across four business areas: Renewable Energy & Energy Solutions, Advanced Materials, Urban Development, and Life Science. Core operations include solar-grade polysilicon production via wholly owned subsidiary OCI TerraSus (35,000 tons/year capacity in Sarawak, Malaysia, powered by hydroelectricity), electronic-grade polysilicon and semiconductor materials (phosphoric acid, hydrogen peroxide, specialty etchants), battery materials (HSPP, SiH4), utility-scale solar PV and battery energy storage project development (7 GW pipeline across Texas and North America), pharmaceutical R&D through majority-owned Bukwang Pharmaceutical, and large-scale urban redevelopment via the CITYOCIEL project in Incheon (~13,000 housing units).

Revenue is generated through B2B direct enterprise sales — long-term polysilicon supply contracts with solar module manufacturers (e.g., Trina Solar), utility-scale energy storage and solar project partnerships (e.g., 120 MW CPS Energy ESS contract, 260 MW Houston-area solar project), pharmaceutical licensing and product sales through Bukwang's 30+ overseas partnerships, and chemical product sales through OCI Company Ltd. The company reports FY2024 sales of KRW 3.6 trillion (~$2.6B USD) and operating income of KRW 0.1 trillion, with a thin ~2.8% operating margin reflecting commodity exposure in polysilicon. Distribution is entirely direct-to-enterprise; there are no consumer-facing channels. Pricing is per negotiated contract and not publicly disclosed.

Recent strategic activity is concentrated on U.S. market expansion (Texas solar cell subsidiary, Alamo City BESS Project with CPS Energy), vertical integration (Vietnam wafer plant acquisition), and upgrading into higher-purity segments (semiconductor-grade polysilicon JV with Tokuyama targeting 2029 commercial production, backed by $125M IFC financing). Governance includes MSCI ESG 'A' rating maintained for three consecutive years (2023–2025) and EcoVadis Gold for operating subsidiary OCI Co., Ltd. The holding-company structure spans eleven operating subsidiaries and joint ventures, with manufacturing and project assets in Korea, Malaysia, Vietnam, and the United States.

Name

OCI Holdings

Legal name

OCI Holdings Company Ltd.

Website

https://oci-holdings.co.kr

Company type

Public

Founded year

1959

Operating status

Operating

Headcount range

11–50 employees

Short description

OCI Holdings is a South Korean holding company operating across solar polysilicon production, semiconductor materials, battery materials, utility-scale solar and BESS project development, pharmaceuticals (Bukwang), and urban redevelopment, serving enterprise customers globally.

Ownership category

akta.pro rank

Product category

Specialty Chemicals and Polysilicon Manufacturing

NAICS

Semiconductor and Related Device Manufacturing (334413), Research and Development in Biotechnology (except Nanobiotechnology) (541714), Computer and Electronic Product Manufacturing (334)

SIC

Semiconductors & Related Devices (3674), Industrial Organic Chemicals (2860), Pharmaceutical Preparations (2834)

akta.pro primary industry

Solar Plant Components Supply & Manufacturing (Modules, Cells, Wafers, Mirrors, Heliostats) (EUACAGAK)

akta.pro secondary industries

Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG), Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal) (EUAEAGAB)

Keywords

• Solar grade polysilicon
• Semiconductor specialty chemicals
• Battery energy storage
• Pharmaceutical development
• Urban redevelopment projects

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Solar-grade Polysilicon Sales: Sale of high-purity solar-grade polysilicon (10-Nine grade) produced at OCI TerraSus facility in Malaysia, with 35,000 tons per year capacity.
2. Semiconductor Materials: Supply of electronic-grade polysilicon, phosphoric acid, hydrogen peroxide and other materials to semiconductor manufacturers across five of eight main processes.
3. Energy Storage Systems (BESS): Development and construction of large-scale battery energy storage systems in Texas, including Alamo City BESS Project with CPS Energy.
4. Solar PV Projects: End-to-end solar photovoltaic project development, financing, construction, and operation including 7 GW development pipeline across Texas and North America.
5. Pharmaceutical Products: R&D, production and commercialization of biopharmaceuticals through Bukwang Pharmaceutical and partnerships with global biotech companies.
6. Urban Development: Residential and commercial real estate development through DCRE subsidiary, CITYOCIEL project delivering approximately 13,000 housing units in Incheon.
7. Chemical Products: Basic chemicals and carbon materials through OCI Company Ltd., including chlor alkali products and specialty chemicals.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

OCI Holdings is a South Korean holding company that manufactures high-purity solar-grade polysilicon at its OCI TerraSus facility in Malaysia (35,000 tons/year) and produces semiconductor-grade polysilicon through a joint venture with Tokuyama. The company develops large-scale solar PV projects and battery energy storage systems (BESS) in North America, manufactures specialty chemicals (electronic-grade polysilicon, phosphoric acid, hydrogen peroxide, HSPP, SiH4) for semiconductor and battery industries, invests in pharmaceutical and biotech ventures through Bukwang Pharmaceutical, and executes the CITYOCIEL urban real estate development in Incheon.

Product overview

OCI Holdings is a South Korean diversified conglomerate with a platform-plus-subsidiaries structure organized around four core business areas: (1) Renewable Energy & Energy Solutions - including solar-grade polysilicon from OCI TerraSus in Malaysia (35,000 tons/year capacity), semiconductor-grade polysilicon via JV with Tokuyama, and 7 GW solar PV development pipeline in Texas; (2) Advanced Materials - electronic-grade polysilicon, phosphoric acid, hydrogen peroxide for semiconductors, and battery materials (HSPP anode, SiH4); (3) Life Science - pharmaceutical/biotech investments including majority stake in Bukwang Pharmaceutical, plus various oncology and cell therapy investments; and (4) Urban Development - CITYOCIEL project redeveloping former Incheon plant site. The holding company (established May 2023) manages operating subsidiaries including OCI Company Ltd. (chemicals), OCI Power (solar PV), OCI SE (cogeneration), DCRE (real estate), and others. The portfolio spans solar materials, battery technology, pharmaceuticals, and real estate development.

Differentiator

Problem solved

Functional benefit

Brands

• OCI: Chemicals division manufacturing basic chemicals, carbon materials, and advanced materials for semiconductors and secondary batteries
• OCI TerraSus
• Bukwang Pharmaceutical
• OCI Power
• CITYOCIEL

Products and services

• Solar-grade Polysilicon (OCI TerraSus) High-purity solar-grade polysilicon (10-Nine grade) produced at OCI TerraSus facility in Sarawak, Malaysia, with annual capacity of 35,000 tons. Manufactured using hydroelectric power for low-carbon production. Sold to solar PV module and wafer manufacturers globally under long-term supply agreements (e.g., Trina Solar 2024 contract).
• Semiconductor-grade Polysilicon High-purity polysilicon for semiconductor manufacturing produced via joint venture with Japan's Tokuyama Corporation. Uses FEOC-compliant traceable supply chain with hydropower at the Malaysian facility. Serves semiconductor manufacturers across wafer fabrication processes.
• Electronic-grade Polysilicon

Quantifiable outcome

• 173% year-to-date stock gain as of May 2026
• +5 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• Arava PowerminorStrategic or Co-development Partner · 1 February 2026Closed construction financing with ING Capital in February 2026 to support a 260 MW solar energy project near Houston. Arava Power is a development partner for this project.
• Tokuyama Corporation (JV)coreStrategic or Co-development Partner · 1 January 2025Joint venture for semiconductor-grade polysilicon manufacturing with commercial production targeted for 2029. Part of OCI's strategy to serve the semiconductor supply chain.
• CPS EnergycoreStrategic or Co-development Partner · 1 December 2024Long-term BESS (Battery Energy Storage System) partnership including 120MW ESS capacity contract signed in December 2024. Alamo City BESS Project groundbreaking in May 2026, marking OCI Holdings' entry into large-scale energy storage in Texas.
• Trina SolarcoreStrategic or Co-development Partner · 1 March 2024Long-term agreement signed in March 2024 for solar-grade polysilicon supply, securing stable offtake for OCI TerraSus production.
• Tokuyama CorporationcoreStrategic or Co-development Partner · 1 June 2023MOU signed in June 2023 to establish joint venture for semiconductor-grade polysilicon manufacturing. Commercial production targeted for 2029. Combines Tokuyama's expertise with OCI's polysilicon capabilities.
• Bukwang Pharmaceutical Co., Ltd.coreStrategic or Co-development Partner · 1 February 2022OCI Holdings secured position as largest shareholder in February 2022. Bukwang is an R&D-centric pharmaceutical company with global partnerships with 30+ overseas companies, specializing in CNS and oncology pipelines.
• OCI KumhominorStrategic or Co-development Partner · 1 January 2022Joint venture established in 2022 with Kumho P&B Chemicals for specialized chemical production.
• POSCO Future MminorStrategic or Co-development Partner · 1 January 2020Established P&O Chemical joint venture in 2020 for hydrogen peroxide commercial production.

Scale indicators8 records

Recent moves15 records

Expansion highlights6 records

Direct peers

• Daqo New Energy: Chinese polysilicon pure-play producer of solar-grade material. Closest pure-play competitor to OCI's polysilicon business, useful for benchmarking cost per kg, capacity utilization, and ASP.
• REC Silicon ASA: Norwegian-headquartered producer of solar-grade and electronic-grade polysilicon. Direct comparable to OCI in the merchant polysilicon market, with operations in the US that overlap geographically with OCI's North American customer base.
• Tokuyama Corporation: Japanese chemical manufacturer and OCI's joint venture partner for semiconductor-grade polysilicon. Competes in the same high-purity polysilicon market OCI serves, and the JV ties the two companies together commercially as well as competitively.
• Wacker Chemie AG: German chemical and semiconductor company and one of the world's largest polysilicon producers, including solar and electronic grades. Directly comparable to OCI TerraSus in the polysilicon business with similar quality tiers and customer base.
• Hemlock Semiconductor: US-based polysilicon producer supplying both solar and semiconductor grades. Comparable to OCI's strategy of serving both markets from a single asset base; key US-domiciled competitor for FEOC-compliant supply.
• Trina Solar: Chinese-headquartered vertically integrated solar module manufacturer and OCI's long-term polysilicon supply customer (2024 agreement). Comparable end-to-end solar value chain presence with manufacturing and downstream project development.
• GCL-Poly Energy Holdings: Chinese vertically integrated solar materials and energy company, one of the largest polysilicon producers globally with significant wafer capacity. Operates across the same solar value chain stages as OCI and is the primary price-setter in commodity polysilicon markets.

Emerging players

• First Solar: US-headquartered thin-film solar module manufacturer and large-scale project developer. Comparable to OCI Power's project development and Mission Solar's module manufacturing operations in the North American utility-scale market.

Broad incumbents

• Hanwha Solutions: Korean industrial conglomerate with chemicals, solar (Qcells), and battery businesses. Most relevant Korean peer for OCI's diversified chemicals-plus-renewables-plus-advanced-materials model.
• LG Chem: Major Korean chemical manufacturer producing petrochemicals, battery materials (cathode, anode), and specialty products. Comparable to OCI's basic chemicals (chlor-alkali, hydrogen peroxide) and battery material (HSPP, SiH4) businesses.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/oci-holdings

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about OCI Holdings