GS CALTEX — BUSINESS CH.04 / POLYMERKREN

GS CALTEX BUSINESS — CHAPTER 04

POLYMER

980,000 tons a year, from HIPRENE in 1988 to MFC —
the fourth chapter: gas becomes material.

The double bonds olefins left behind now join hands. One alone is a gas — tens of thousands, linked, become a material.

ORIGIN

The name means
"many parts"

From the Greek poly (many) and meros (parts) — a polymer is literally something made of many pieces. The Korean term, 중합체, says the same: matter joined again and again.

A single ethylene is just a gas molecule. Link tens of thousands into a chain, and it becomes something else entirely — film, containers, car parts. Chemistry where pieces add up to properties.

01 — MONOMER

For now, just
scattered pieces

Ethylene and propylene are the leading monomers that make up polymers. Ethylene becomes the main feedstock for polyethylene (PE), and propylene for polypropylene (PP).

01 — POLYMERIZATION

Meet the catalyst,
and they join hands

A monomer, repeatedly bonded to itself with the help of a catalyst, forms a long-chain macromolecule — this process is called polymerization. By adjusting the catalyst and process conditions, we can achieve the specific strength, flexibility, clarity and other properties a given use requires.

01 — PELLET

What was gas becomes
grains you can hold

The polymer produced through polymerization is formed into small pellets for easy handling and transport. These pellets are then molded and processed into packaging, containers, pipes, automotive parts, appliances and countless other products.

POLYMER 980K TONS / YR

02 — CAPACITY

Three polymer lines,
980K tons a year combined

Polyethylene 500
Compound 300
PP 180
Unit: K tons/yr500 + 300 + 180 = 980
PESINCE 2022 · MFC

Polyethylene

0K tons / yr

Polyethylene (PE) is a leading synthetic resin made by polymerizing ethylene. GS Caltex applies CPChem's Advanced Dual Loop (ADL) process to produce 500,000 tons a year of high-density polyethylene (HDPE), used across everyday goods, packaging, pipes, and construction and industrial materials.

Everyday goodsPackagingPipeIndustrial materials
COMPOUNDENGINEERED PROPERTIES

Compound Resin

0K tons / yr

Compound resin is made by blending rubber, fillers and additives into PP and other synthetic resins to engineer the properties a specific use requires. Its range of stiffness, impact resistance and heat resistance makes it suitable for automotive interior and exterior parts, appliance components and more.

Auto interior·exteriorAppliance partsIndustrial materials
PPSINCE 1988 · HIPRENE

Polypropylene

0K tons / yr

Polypropylene (PP) is a leading synthetic resin made by polymerizing propylene. GS Caltex has produced polypropylene since 1988 and today has a capacity of 180,000 tons a year, with products engineered for a wide range of uses and properties — from food containers, film and fiber to automotive and appliance materials.

Food containersFilmFiberAuto & appliance materials

03 — TECHNOLOGY

Accumulated technology
behind advanced high-performance materials

Drawing on R&D capabilities built up over decades in the polymer business, GS Caltex develops high-performance materials engineered for diverse uses and customer needs.

LFTLONG FIBER REINFORCED THERMOPLASTICS

LFT (Long Fiber Reinforced Thermoplastics) is a composite material reinforced with long fibers to enhance a thermoplastic resin's mechanical and thermal properties. Its strength and light weight make it a metal-replacement material used in automotive parts and other applications.

LOW-CARBON MRLOW-CARBON MR COMPOUND RESIN

A compound resin produced using mechanically recycled feedstock from waste plastic. GS Caltex has produced low-carbon MR compound resin since 2010 and continues to develop and expand supply of high-quality recycled materials made from end-of-life automotive, appliance and household plastics. In 2025, it became the first in Asia to earn RecyClass certification across the entire value chain for end-of-life vehicle plastic materials.

04 — HISTORY

From polypropylene in 1988
to polyethylene and high-performance materials

1988
Polypropylene business beginsContinued technology development and capacity expansion built the foundation of the business
1998
Daedeok central R&D center completedStrengthened R&D capabilities and expanded development of high-performance polymer materials
2001
Strengthened self-sufficiency in propyleneUsing propylene produced by the refinery's upgrading process (RFCC) deepened the link between refining and polymer
2022
Polyethylene business expandsWith MFC on stream, production began of 500,000 tons a year of HDPE from in-house ethylene — strengthening competitiveness from olefins through to polymer

05 — GLOBAL

Built on domestic technology and production strength,
we are expanding into global markets

GS Caltex has strengthened the global competitiveness of its compound resin business by establishing overseas production subsidiaries in China and Czechia, building on its domestic production base and R&D capabilities. We continue to expand local production and supply capacity to meet the demand of global automotive, appliance and other customers.

0M USD

Total polymer revenueAS OF 2025

0K tons

Annual sales volumeAS OF 2025

0plants

Overseas subsidiariesCHINA ×2 · CZECHIA · MEXICO

Yeosu · Jinju plantsDaedeok R&DLangfangSuzhouKarvináMonterreyChongqingTokyo

The feedstocks born in refining also lead on to high-quality base oil. The next chapter follows the base oil business, which uses unconverted oil from the refinery's upgrading process to produce the foundational feedstock of premium lubricants.