GS Caltex

What GS Caltex does

GS Caltex (GS칼텍스주식회사) is South Korea's first private oil refiner, founded in 1967 as a subsidiary of the GS Group conglomerate, and operates an integrated energy and chemical platform centered on the Yeosu complex — the world's 4th largest single-site crude oil refinery. The company's product portfolio spans refined petroleum products (gasoline, diesel, jet fuel, marine fuel, LPG, asphalt), aromatics (benzene, toluene, paraxylene, mixed xylene), olefins (ethylene, propylene, C4 fractions), polymers (polypropylene at 180,000 tons/year, HDPE at 500,000 tons/year using CPChem's ADL process, and compounded resins at 300,000 tons/year including 50,000 tons of mechanical recycling), premium Group II/III base oils (30,000 bbl/day via hydrocracker), and finished lubricants under the Kixx brand.

The company operates a dual B2B/B2C commercial model. Approximately 70% of production is exported to over 50 countries through its Singapore trading arm (ranked top 5-7 in Singapore by sales volume), with manufacturing subsidiaries supplying compounded polymers to Hyundai, Kia, LG Electronics, and Samsung Electronics across China, the Czech Republic, and India. Domestically, GS Caltex runs the Energy Plus retail gas station network serving individual consumers, integrated with Naver/Apple Pay, Kakao Mobility e-bike sharing, Naver Plus loyalty, and IKEA pickup partnerships. Pricing in B2B petroleum/petrochemical/lubricant channels is contract-based and not publicly disclosed; consumer retail fuel pricing is regulated.

The company is executing a Green Transformation strategy through biofuels (SAF, biodiesel, bio-marine fuel) with Korean Air and HMM, bio-based chemicals (2,3-Butanediol, 1,3-Propanediol) with L'Oréal and Summit Cosmetics, mechanical and chemical plastic recycling with RecyClass and ISCC EU certifications, hydrogen partnerships with KOGAS, CCUS projects, and entry into data center cooling fluids (Kixx DLC Fluid PG25, Kixx Immersion Fluid S). Recent strategic moves include a Triple-X framework partnership with France's Veolia (April 2026), launch of the Indonesia palm oil refinery JV with POSCO International (November 2025, KRW 260 billion), and the Asia-first RecyClass certification (November 2025). Revenue is not publicly disclosed; GS Caltex is privately held and operates as part of the GS Group ecosystem without evidence of outside private equity or venture capital ownership.

Name

GS Caltex

Legal name

GS Caltex Corporation (GS칼텍스주식회사)

Website

https://gscaltex.com

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

501–1,000 employees

Short description

GS Caltex is South Korea's first private oil refiner (founded 1967), operating the world's 4th largest single-site refinery at Yeosu. It produces petroleum products, petrochemicals, polymers, base oils, and lubricants, exporting 70% of output to 50+ countries via its Singapore trading arm, while expanding into biofuels, bio-chemicals, and data center cooling fluids.

Ownership category

akta.pro rank

Product category

Petroleum Refining

NAICS

Petroleum Refineries (324110), Petrochemical Manufacturing (32511), Petroleum Lubricating Oil and Grease Manufacturing (324191), Starch and Vegetable Fats and Oils Manufacturing (31122), Petroleum and Coal Products Manufacturing (3241)

SIC

Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820), Miscellaneous Chemical Products (2890), Fats & Oils (2070)

akta.pro primary industry

Syngas & Hydrogen Feedstocks (SMR/ATR, Refinery/Petrochem H2) (EUALAHAE)

akta.pro secondary industries

Carbon Black & Coker Products Feedstocks (Petroleum Coke, Carbon Black oils) (EUALAHAI), Biofuel Co-products & Byproduct Processing (DDGS, Glycerin, CO2, Lignin) (EUAAAHAJ)

Keywords

• Petroleum refining
• Petrochemical production
• Polymer manufacturing
• Lubricant base oils
• Sustainable aviation fuel

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices20 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Petroleum Refining: GS Caltex refines crude oil into petroleum products including gasoline, diesel, kerosene, LPG, jet fuel, marine fuel, asphalt, and heavy fuel oil. As Korea's first private refiner and one of the country's four major refiners, it operates the Yeosu complex with globally competitive refining capacity. Approximately 70% of total production is exported to over 50 countries.
2. Petrochemicals (Aromatics, Olefins, Polymers): Produces aromatics (benzene, toluene, paraxylene, mixed xylene), olefins (ethylene, propylene, C4 fractions), and polymers (polypropylene, HDPE, compounded resin) from refinery feedstock. Products serve automotive, electronics, construction, and consumer goods industries globally.
3. Lubricants and Base Oils: Produces and sells premium base oils (Group II and Group III) under the Kixx LUBO brand and finished lubricants under the Kixx brand. Base oil production capacity is 30,000 barrels/day, with over 70% exported across Asia.
4. Biofuels and Biochemicals: Produces bio-based Sustainable Aviation Fuel (SAF), bio-diesel, bio-marine fuel, and bio-based chemicals (bio-diols). Part of the Green Transformation strategy, targeting low-carbon energy and materials markets.
5. Retail Fuel and Convenience: Operates the Energy Plus and Energy Plus Hub retail gas station network across South Korea, serving individual consumers with fuels, EV charging, and convenience services through the Energy Plus app.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels9 records

Core offering

GS Caltex is an integrated energy and chemical company that refines crude oil into petroleum products (gasoline, diesel, jet fuel, marine fuel, LPG, kerosene, asphalt) at its Yeosu complex and produces aromatics (benzene, toluene, paraxylene), olefins (ethylene, propylene), polymers (polypropylene, HDPE, compounded resins), Group II/III base oils, and finished lubricants under the Kixx brand. The company also produces biofuels (SAF, biodiesel, BMF), bio-based chemicals (2,3-butanediol, 1,3-propanediol), low-carbon recycled compounded resins, data center cooling fluids, and is developing hydrogen and CCUS value chains. It serves industrial B2B customers globally and individual consumers through its Energy Plus retail gas station network in South Korea.

Product overview

GS Caltex is South Korea's first private oil refiner, operating as a comprehensive energy and chemical company with a diversified portfolio spanning refining, petrochemicals, polymers, base oils, and lubricants. The company operates its main Yeosu refinery producing refined petroleum products (gasoline, diesel, jet fuel, marine fuels), aromatics (benzene, toluene, paraxylene), and olefins (ethylene, propylene). Its polymer division produces polypropylene (180,000 tons/year), HDPE (500,000 tons/year), and compound resins (300,000 tons/year including MR grades). The Kixx brand encompasses base oils (Group II/III, 30,000 bbl/day) and lubricants for automotive, industrial, and marine applications. GS Caltex is executing a Green Transformation strategy through biofuel production (biodiesel, SAF, BMF), mechanical/chemical plastic recycling with RecyClass certification, and bio-chemicals (butanediol, propanediol). The company has entered new markets including data center cooling fluids (Kixx DLC, immersion fluids) and is developing hydrogen and CCUS technologies. Future growth initiatives center on the Energy Plus Hub smart gas station platform and international expansion through overseas subsidiaries in Singapore, China, Czech Republic, and India, plus palm oil operations in Indonesia.

Differentiator

Problem solved

Functional benefit

Brands

• Kixx: GS Caltex's lubricant brand covering automotive and industrial lubricants including engine oils, chain lubricants, and specialized products such as Kixx EV for electric vehicles.
• Kixx LUBO
• Energy Plus
• Energy Plus Eco
• Deep Transformation (DAX)

Products and services

• Refined Petroleum Products (Gasoline, Diesel, Kerosene, LPG, Jet Fuel, Marine Fuel, Asphalt, Heavy Oil) Gasoline (regular and premium), diesel, kerosene, LPG, jet fuel (JP-5, JP-8, Jet A-1), marine fuel oils, asphalt, and heavy oils produced at the Yeosu refinery and distributed domestically and exported via the Singapore trading arm to over 50 countries.
• Aromatics (Benzene, Toluene, Paraxylene, Mixed Xylene) Aromatic petrochemical products (benzene, toluene, paraxylene, mixed xylene) manufactured at Yeosu as raw materials for plastics, synthetic fibers, and chemical production; sold to industrial customers globally.
• Olefins (Ethylene, Propylene, C4 fractions) Ethylene, propylene, and C4 fractions produced via the MFC (Olefin Production Facility) at Yeosu for use in polymer and petrochemical manufacturing; propylene is produced in-house for cost-competitive PP production.
• Polymer Products (Polypropylene, HDPE, PP Compounds, Low-Carbon MR Compound Resin) Polypropylene (180,000 tons/year), HDPE (500,000 tons/year using CPChem ADL process), compounded PP resins (300,000 tons/year including 50,000 tons MR), LFT, and low-carbon MR compound resin serving automotive, home appliance, electronics, and construction industries globally via production subsidiaries in China and Czech Republic.
• Kixx LUBO Base Oils Premium Group II and Group III base oils produced at 30,000 barrels/day capacity using advanced hydrocracker technology; viscosity grades 60N to 600N (2cSt to 8cSt) for automotive, industrial, and marine lubricant manufacturing; over 70% of production is exported across Asia.
• Kixx Lubricants Comprehensive lubricant products under the Kixx brand including engine oils, industrial lubricants, Kixx EV (for electric vehicles), and specialty products manufactured at the Incheon plant and distributed globally.
• Kixx DLC Fluid PG25 Direct liquid cooling (DLC) fluid for data centers enabling localized cooling of high-heat electronic components in AI and high-performance computing environments; GS Caltex's entry product into the direct liquid cooling market.
• Kixx Immersion Fluid S Immersion cooling fluid for data centers enabling energy-efficient cooling solutions for high-density computing environments.
• Biofuel Products (Biodiesel, SAF, BMF) Bio-diesel (BD), Sustainable Aviation Fuel (SAF), and Bio Marine Fuel (BMF) produced as part of the Green Transformation strategy for aviation, shipping, and ground transport decarbonization; ISCC EU certified.
• Bio Chemicals (2,3-Butanediol, 1,3-Propanediol) Bio-based 2,3-butanediol and 1,3-propanediol (GreenDiol) produced via fermentation processes for use in cosmetics, personal care, and crop protection markets; supplied to L'Oréal and other partners.
• Low-Carbon MR Compound Resin (Mechanical & Chemical Plastic Recycling) Mechanical and chemical plastic recycling producing low-carbon compounded resins matching virgin PP quality, using recycled plastic sources from automotive, electronics, and household partners; RecyClass certified for automotive, home appliance, and electronics applications.
• Indonesia Palm Oil Refinery Products (PT. ARC Joint Venture) Refined palm oil products including edible oils and biodiesel feedstock produced at the PT. ARC (AGPA Refinery Complex) joint venture in Balikpapan, Indonesia (KRW 260 billion investment with 500,000 tons/year capacity) for markets in Indonesia, Korea, and China.
• Energy Plus Gas Station Network (Retail Fuel and EV Charging) Retail sales of gasoline, diesel, LPG, EV charging services, and convenience products through the nationwide Energy Plus and Energy Plus Hub gas station network across South Korea, supported by the Energy Plus mobile app and Naver Plus loyalty integration.

Quantifiable outcome

• 20% refinery fuel cost reduction through AI-driven Manufacturing AI Transformation (M.AX) program
• +3 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability5 records

Feature9 records

Partnerships

17 partnerships are on record, tiered core and minor.

• Veolia (France)coreStrategic or Co-development Partner · 5 April 2026GS Caltex signed a strategic partnership with France's Veolia during President Emmanuel Macron's visit to Korea to upgrade utility operations and strengthen sustainability at the Yeosu plant. The agreement, structured under a 'Triple-X' framework covering business transformation, digital/AI transformation, and green transformation, marks a shift from project-based cooperation to a long-term strategic partnership.
• POSCO InternationalcoreStrategic or Co-development Partner · 24 November 2025GS Caltex and POSCO International established a joint venture refinery PT. ARC (AGPA Refinery Complex) in Balikpapan, East Kalimantan, Indonesia. The KRW 260 billion (USD 210 million) facility has annual refining capacity of 500,000 tons, processing crude palm oil into refined products including edible oils and biodiesel feedstock for markets in Indonesia, Korea, and China. POSCO International invested approximately KRW 1.3 trillion to acquire 128,000 hectares of palm plantations through Sampoerna Agro, establishing a complete palm oil value chain.
• Korean AircoreStrategic or Co-development Partner · 29 June 2023GS Caltex and Korean Air entered into a partnership for Sustainable Aviation Fuel (SAF) demonstration flights. Korean Air conducted SAF pilot flights using fuel supplied by GS Caltex, marking the beginning of Korea's SAF ecosystem for aviation decarbonization.
• L'OréalminorStrategic or Co-development Partner · 27 June 2023GS Caltex partnered with L'Oréal Group to develop bio-based cosmetic ingredients. GS Caltex supplies bio-based materials from its biochemical production capabilities (bio-diols such as 2,3-butanediol and 1,3-propanediol) for use in L'Oréal's cosmetic formulations, supporting both companies' sustainability goals.
• LG ChemicalminorStrategic or Co-development PartnerGS Caltex and LG Chemical signed agreements for eco-friendly raw material joint development, including 3HP (3-hydroxypropionic acid) bio-based material development as part of building a white bio ecosystem. Also collaborated on electric motor vehicle battery-specific services using big data.
• Kakao MobilityminorGTM or Marketing PartnerGS Caltex partnered with Kakao Mobility for electric bicycle sharing services and strategic investment, integrating mobility services at GS Caltex gas stations under the Energy Plus brand.
• IKEA KoreaminorGTM or Marketing PartnerGS Caltex partnered with IKEA Korea to establish gas station pickup service locations, leveraging the gas station network as convenient logistics pickup points for IKEA customers.
• NaverminorGTM or Marketing PartnerGS Caltex joined Naver Plus membership in April 2026, offering customers 100 won credit per liter of fuel purchased at GS Caltex gas stations through the Naver Pay ecosystem.
• Nestlé KoreaminorStrategic or Co-development PartnerGS Caltex and Nestlé Korea partnered to build a circular economy ecosystem, focusing on plastic bottle recycling and upcycling initiatives.
• HMM (Hyundai Merchant Marine)minorStrategic or Co-development PartnerGS Caltex and HMM partnered for the first demonstration voyage using bio-marine fuel (BMF), marking the beginning of sustainable shipping fuel adoption in Korea.
• Korean East-West Power and Yeosu CityminorStrategic or Co-development PartnerGS Caltex partnered with Korean East-West Power and Yeosu City to strengthen the hydrogen business value chain, leveraging Yeosu's industrial ecosystem.
• Korean Gas Corporation (KOGAS)minorStrategic or Co-development PartnerGS Caltex partnered with KOGAS to enter the hydrogen market, developing the hydrogen value chain as part of Korea's hydrogen economy initiative.
• Korea Energy FoundationminorStrategic or Co-development PartnerGS Caltex partnered with the Korea Energy Foundation for a joint public-private energy efficiency improvement program, targeting low-income households with energy efficiency upgrades and heating oil donations.
• Summit Cosmetics (Japan)minorStrategic or Co-development PartnerGS Caltex partnered with Japan's Summit Cosmetics to expand into the global cosmetic raw material market, leveraging GS Caltex's bio-based chemical production capabilities and Summit's formulation expertise.
• Hyundai Engineering & ConstructionminorStrategic or Co-development PartnerGS Caltex partnered with Hyundai Engineering & Construction for smart plant and construction projects, contributing to digital transformation of the energy sector.
• Bioeconomy CorporationminorStrategic or Co-development PartnerThrough the Terengganu State Palm Oil Mill Biogas Upgrading Project coordinated by Bioeconomy Corporation, GS Caltex participates in a Malaysia-Korea renewable energy partnership converting palm oil waste into Bio-CNG. The RM700 million investment pipeline project is the first Malaysia-Korea project to receive formal recognition from the Malaysian Government under Article 6.2 of the Paris Agreement. Development activities expected to start in 2027, commercial operations targeted for 2029.
• Daeshin MCminorStrategic or Co-development PartnerDaeshin MC CEO proposed a national SAF alliance, with GS Caltex as one of four major refiners (alongside SK Innovation, S-Oil, HD Hyundai Oilbank) planning to jointly build SAF production facilities targeting a projected 21-trillion-won global market by 2030.

Scale indicators11 records

Recent moves9 records

Expansion highlights7 records

Direct peers

• S-Oil: South Korea's second-largest refiner and one of the four Korean refiners under investigation alongside GS Caltex. Operates the Onsan complex with comparable integrated refining-petrochemical capabilities and similar export orientation, making it the closest like-for-like peer for GS Caltex's domestic and global businesses.
• SK Energy: Korea's largest refiner and a direct competitor across gasoline, diesel, jet fuel, petrochemicals, and lubricants. SK Energy's scale is larger than GS Caltex's, but both share the Korean home market, integrated refiner-petchem model, and exposure to the same regulatory investigation and energy transition dynamics.
• HD Hyundai Oilbank: Korea's fourth major refiner and the fourth company implicated in the alleged price-fixing investigation alongside GS Caltex. Comparable integrated refining model with similar product mix and export dependence, providing a near-direct benchmark for GS Caltex's domestic refining economics.
• LOTTE Chemical: Korean petrochemical producer of olefins, polyolefins, and specialty polymers serving the same Korean chaebol customer base (Hyundai, LG, Samsung). LOTTE Chemical overlaps directly with GS Caltex's PP and HDPE businesses, and both operate polymer compounding capacity supporting automotive and electronics OEMs.

Broad incumbents

• LG Chem: Korea's largest chemical company and a broad incumbent across petrochemicals, advanced polymers, and battery materials. While LG Chem has a wider product portfolio than GS Caltex, the two share joint development work on bio-based materials (3HP, white bio) and EV battery materials, making them adjacent comparables.
• Formosa Plastics Group: Taiwanese petrochemical conglomerate producing olefins, polyolefins (PP, HDPE), aromatics, and downstream specialties. Comparable to GS Caltex's petrochemical and polymer divisions in product mix and Asian export orientation, although Formosa operates at meaningfully larger scale and with broader vertical integration.
• PTT Public Company: Thailand's integrated national energy and petrochemical company spanning upstream gas, refining, olefins/polyolefins, and lubricants. PTT's structure and Asian export footprint closely parallel GS Caltex's integrated model, although PTT has greater upstream exposure and operates at a larger scale.
• Reliance Industries: India's largest private-sector integrated energy and petrochemical company operating the world's largest single-site refining complex at Jamnagar. Reliance is the global benchmark for integrated refining-petchem scale and a comparable for GS Caltex's export orientation, Green Transformation investments, and emerging polymer/recycling strategies.

Regional players

• Idemitsu Kosan: Japan's second-largest refiner with integrated petroleum, petrochemical, and lubricant operations across Asia. Idemitsu is a strong regional analog to GS Caltex, with comparable base oil and lubricant businesses and a similar strategic focus on energy transition, although it primarily serves the Japanese market rather than Korea.

Emerging players

• Hengli Petrochemical: Privately-held Chinese integrated petrochemical and polymer producer that has rapidly scaled refining-to-aromatics-to-PTA-to-polyester capacity. While a private newcomer rather than a legacy incumbent, Hengli's integrated refining-petchem model and Asian export focus overlap meaningfully with GS Caltex's petrochemical business.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UC-L1ASPpGeohPaxCtm0REbA
• LinkedInlinkedin.com/company/gs-caltex
• Instagraminstagram.com/gscaltex_official
• Xx.com/energyinsighter
• Facebookfacebook.com/insightofgscaltex

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries14 records

Funding overview

Funding rounds

Investors

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

M&A

Investments6 records

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

Frequently asked questions about GS Caltex