# Chemical companies headquartered in South Korea

Tamtam tracks 29 chemical companies headquartered in South Korea. This list ranks all of them by number of employees on LinkedIn, led by Hanwha Group, LG Chem and POSCO HOLDINGS. Their median headcount is 491. Half of them were founded in 1971 or later. The most common headquarters are Seoul (14).

This list comprises major chemical companies in South Korea, including large diversified groups and mid-sized firms. The companies are primarily involved in chemical manufacturing, oil and gas, and advanced materials.

Key players include Hanwha Group, a global diversified business; LG Chem, specializing in petrochemicals and life sciences; SK Innovation, focused on sustainable energy technologies; and POSCO HOLDINGS, a global steel producer. A notable pattern is the strong concentration of headquarters in Seoul, indicating the capital's role as a business hub for this sector.

🇰🇷 South Korea · 29 companies · Updated Nov 14, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Hanwha Group](https://www.tamtam.ai/c/hanwha-group) (hanwha.com)<br>Global diversified business group specializing in energy, aerospace, finance, retail, and services with a strong focus on sustainability and innovation. | Chemical Manufacturing | 🇰🇷 Seoul | 7,341 |  |
| 2 | [LG Chem](https://www.tamtam.ai/c/lg-chem) (lgchem.com)<br>A global chemical company specializing in petrochemicals, advanced materials, and life sciences, committed to carbon-neutral growth and net-zero emissions by 2050 | Chemical Manufacturing | 🇰🇷 Seoul | 5,545 | 1947 |
| 3 | [POSCO HOLDINGS](https://www.tamtam.ai/c/posco-holdings) (newsroom.posco.com)<br>A global steel producer known for innovative solutions, recognized for competitiveness, and committed to corporate citizenship and sustainable growth | Holding Companies | 🇰🇷 Pohang | 3,967 | 1968 |
| 4 | [SK Innovation](https://www.tamtam.ai/c/sk-innovation) (skinnovation.com)<br>SK Innovation is a leading energy company focused on sustainable technologies, oil refining, petrochemicals, electric vehicle batteries, and global material solutions | Oil and Gas | 🇰🇷 Seoul | 3,906 | 1962 |
| 5 | [SK Engineering & Construction Co. Ltd](https://www.tamtam.ai/c/sk-engineering-and-construction-co-ltd) (skecoplant.com)<br>A company established in 1977, focused on sustainable growth, stability, and achieving happiness for humanity through consistent efforts | Oil and Gas | 🇰🇷 Seoul | 3,256 | 1977 |
| 6 | [Hyosung Corporation](https://www.tamtam.ai/c/hyosung-corporation) (hyosung.com)<br>An innovative conglomerate focused on developing materials, parts, and equipment for safer vehicles, sustainable electricity, functional clothing, and customer well-being | International Trade and Development | 🇰🇷 Seoul | 2,571 | 1966 |
| 7 | [LOTTE chemical](https://www.tamtam.ai/c/lotte-chemical) (lottechem.com)<br>A global petrochemical company focused on developing cutting-edge technologies for producing high-quality chemical products and expanding globally | Chemical Manufacturing | 🇰🇷 Songpa-gu | 1,939 | 1976 |
| 8 | [GS Caltex](https://www.tamtam.ai/c/gs-caltex) (gscaltex.com)<br>A leading petroleum company in South Korea, producing high-quality petroleum products and leading economic development through domestic supply and global exports | Oil and Gas | 🇰🇷 Seoul | 979 | 1967 |
| 9 | [OCI](https://www.tamtam.ai/c/oci) (oci.co.kr)<br>Global producer of specialty chemicals with diverse portfolio in basic chemicals, carbon chemicals, renewable energy, and advanced materials, serving customers worldwide Continuously investing in future technologies | Renewable Energy Semiconductor Manufacturing | 🇰🇷 Seoul | 788 | 1959 |
| 10 | [Kolon Industries, Inc](https://www.tamtam.ai/c/kolon-industries-inc) (kolonindustries.com)<br>A pioneer in the Korean fashion industry, offering innovative and reliable products, with a vision to lead globally in fashion trends | Chemical Manufacturing | 🇰🇷 Seoul | 740 | 1957 |
| 11 | [SK ecoplant](https://www.tamtam.ai/c/sk-ecoplant) (skecoplant.com)<br>Leading environmental services operator focused on water treatment, waste management, e-waste, renewable energy, and building a circular economy for a better world | Architecture and Planning | 🇰🇷 Seoul | 684 | 1977 |
| 12 | [Dangote Cement Senegal S.A.](https://www.tamtam.ai/c/dangote-cement-senegal-s-a) (dangotecement.com)<br>Produces high-quality cement in Senegal, utilizing local limestone reserves. Provides superior cement for the construction industry and exports to West African countries. | Wholesale Building Materials | 🇰🇷 Dakar | 675 | 2007 |
| 13 | [S-OIL Corporation](https://www.tamtam.ai/c/s-oil-corporation) (s-oil.com)<br>An oil refining company with integrated operations in lubricants and petrochemicals, ensuring stable crude oil imports and superior competitiveness in the market | Oil and Gas | 🇰🇷 Seoul | 666 | 1976 |
| 14 | [Samyang Group](https://www.tamtam.ai/c/samyang-group) (samyang.com)<br>A diversified company founded in 1924, specializing in chemicals, food, biopharmaceuticals, and packaging, focusing on innovation and global expansion | Manufacturing | 🇰🇷 Seoul | 503 | 1924 |
| 15 | [SK chemicals](https://www.tamtam.ai/c/sk-chemicals) (skchemicals.com)<br>The company manufactures chemical products including PETG and PET resins for various industries, as well as life science products like anti-cancer agents and vaccines | Plastics Manufacturing | 🇰🇷 Seongnam-Si | 491 |  |
| 16 | [SKC](https://www.tamtam.ai/c/skc) (skc.co.kr)<br>With a focus on developing materials for a better world, this company provides innovative solutions in rechargeable battery, semiconductor, and eco-friendly materials | Renewables & Environment | 🇰🇷 Seoul | 416 | 1976 |
| 17 | [Kumho Tire](https://www.tamtam.ai/c/kumho-tire) (kumhotire.co.kr)<br>A global tire manufacturing company with 8 production facilities across Korea, China, USA, and Vietnam along with a worldwide sales network | Motor Vehicle Manufacturing | 🇰🇷 | 390 |  |
| 18 | [Korea Research Institute of Chemical Technology (KRICT)](https://www.tamtam.ai/c/korea-research-institute-of-chemical-technology-krict) (krict.re.kr)<br>The company develops new technologies in chemistry, enhances industry competitiveness, creates growth industries, and participates in policy-making and research collaboration | Chemical Manufacturing | 🇰🇷 Daejeon | 360 | 1976 |
| 19 | [Hanwha Solutions Corporation](https://www.tamtam.ai/c/hanwha-solutions-corporation) (hanwhasolutions.com)<br>A company specializing in smart energy solutions, customer-focused materials, and green hydrogen, aiming to lead in sustainable global growth for a better future | Renewable Energy Semiconductor Manufacturing | 🇰🇷 Seoul | 321 | 1965 |
| 20 | [CJ CheilJedang BIO](https://www.tamtam.ai/c/cj-cheiljedang-bio) (cjbio.net)<br>Global bio ingredients producer and supplier for feed and food industry, offering amino acids, single cell protein, nucleotides, and MSG while advancing sustainable bio solutions | Biotechnology Research | 🇰🇷 Seoul | 309 |  |
| 21 | [SONGWON Industrial Group](https://www.tamtam.ai/c/songwon-industrial-group) (songwon.com)<br>A global leader providing specialty chemicals since 1965, offering innovative solutions for a sustainable future with products in over 60 countries | Chemical Manufacturing | 🇰🇷 Ulsan | 256 | 1965 |
| 22 | [KISCO](https://www.tamtam.ai/c/kisco) (kisco.co)<br>A leading developer and manufacturer of dyes, inks, fine chemicals, and functional materials with over 50 years of experience | Chemical Manufacturing | 🇰🇷 Seoul | 183 | 1971 |
| 23 | [동진쎄미켐](https://www.tamtam.ai/c/company-hwaseong-si) (dongjin.com)<br>A China-based company specializing in chemical manufacturing and distribution | Chemical Manufacturing | 🇰🇷 | 182 |  |
| 24 | [hanhwa total](https://www.tamtam.ai/c/hanhwa-total) (hanwha-total.com)<br>A company specializing in petrochemicals, with a focus on producing various chemical products and materials for a wide range of industries | Oil and Gas | 🇰🇷 Seosan-si | 173 |  |
| 25 | [SFC Co., Ltd.](https://www.tamtam.ai/c/sfc-co-ltd) (sfcprobes.com)<br>A South Korean company specializing in OLED raw materials, fluorescent dyes, oligonucleotides, and oligo API CDMO services for molecular diagnostics | Biotechnology Research | 🇰🇷 Cheonju-si | 29 |  |
| 26 | [FTC Korea](https://www.tamtam.ai/c/ftc-korea) (ftckorea.com)<br>The company specializes in developing various precision chemical products such as catalysts, surfactants, additives for coatings, resins, flow control agents, and raw materials for cosmetics | Chemical Manufacturing | 🇰🇷 Pyeongtaek | 21 | 1999 |
| 27 | [ILJIN Composites Co.,Ltd.](https://www.tamtam.ai/c/iljin-composites-co-ltd) (composite.co.kr)<br>Global leader in hydrogen storage systems with over 20 years of experience Provides cylinder and whole system/module solutions for FCEV vehicles | Motor Vehicle Manufacturing | 🇰🇷 | 14 | 1999 |
| 28 | [REVATION](https://www.tamtam.ai/c/revation) (revation.co.kr)<br>A green solution company offering eco-friendly product development services, including consultation, design, R&D, manufacturing, inspection, and delivery, using sustainable materials | Manufacturing | 🇰🇷 Gangseo-gu | 8 | 2021 |
| 29 | [Saint-Gobain Life Science KR (생고뱅코리아)](https://www.tamtam.ai/c/saint-gobain-life-science-kr) (xn--299as6v82bm6gdrgtqr.com)<br>A global leader in developing and integrating diverse raw materials based on innovative materials, providing customized single-use solutions for biopharmaceuticals and cell therapy markets | Plastics Manufacturing | 🇰🇷 Gangnam-Gu | 6 |  |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 14, 2026.

## More company lists in South Korea

- [The largest companies in South Korea](https://www.tamtam.ai/l/largest-companies-south-korea) (879)
- [Multinational companies in South Korea](https://www.tamtam.ai/l/multinational-companies-south-korea) (298)
- [Companies with in-house R&D in South Korea](https://www.tamtam.ai/l/r-and-d-companies-south-korea) (228)
- [Manufacturers in South Korea](https://www.tamtam.ai/l/manufacturers-south-korea) (171)
- [Publicly traded companies in South Korea](https://www.tamtam.ai/l/publicly-traded-companies-south-korea) (122)
- [Companies with a mobile app in South Korea](https://www.tamtam.ai/l/companies-with-mobile-app-south-korea) (116)
- [IT Services and IT Consulting companies in South Korea](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-south-korea) (112)
- [Hardware manufacturers in South Korea](https://www.tamtam.ai/l/hardware-companies-south-korea) (98)
- [Corporate groups and holding companies in South Korea](https://www.tamtam.ai/l/holding-companies-south-korea) (98)
- [Education providers in South Korea](https://www.tamtam.ai/l/education-companies-south-korea) (88)
- [Financial services firms in South Korea](https://www.tamtam.ai/l/financial-services-firms-south-korea) (73)
- [Higher Education companies in South Korea](https://www.tamtam.ai/l/higher-education-companies-south-korea) (65)
- [Critical infrastructure operators in South Korea](https://www.tamtam.ai/l/critical-infrastructure-operators-south-korea) (60)
- [Retail chains in South Korea](https://www.tamtam.ai/l/retail-chains-south-korea) (59)
- [AI companies in South Korea](https://www.tamtam.ai/l/ai-companies-south-korea) (55)
- [Computer Games companies in South Korea](https://www.tamtam.ai/l/computer-games-companies-south-korea) (53)
- [Public sector organisations in South Korea](https://www.tamtam.ai/l/public-sector-organisations-south-korea) (48)
- [Energy companies in South Korea](https://www.tamtam.ai/l/energy-companies-south-korea) (47)
- [Financial Services companies in South Korea](https://www.tamtam.ai/l/financial-services-companies-south-korea) (46)
- [Research institutes in South Korea](https://www.tamtam.ai/l/research-institutes-south-korea) (43)
- [Automotive manufacturers and suppliers in South Korea](https://www.tamtam.ai/l/automotive-companies-south-korea) (42)
- [E-commerce companies in South Korea](https://www.tamtam.ai/l/ecommerce-companies-south-korea) (42)
- [Electronics and semiconductor companies in South Korea](https://www.tamtam.ai/l/electronics-companies-south-korea) (37)
- [SaaS companies in South Korea](https://www.tamtam.ai/l/saas-companies-south-korea) (28)

## The same list elsewhere

- [Chemical companies in the world](https://www.tamtam.ai/l/chemical-companies-in-the-world) (6,502)
- [Chemical companies in Asia](https://www.tamtam.ai/l/chemical-companies-in-asia) (972)

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Source: https://www.tamtam.ai/l/chemical-companies-south-korea