Skip to content

Our business

Provides solutions for a better world


OCI produces plasticizers that improve the flexibility and low-temperature resistance of PVC products.

Product Features




Plasticizers improve the flexibility, low-temperature resistance, and processability of PVC products. They are raw materials to produce wire compounds, wallpaper, flooring, PVC film, automotive sealant (sealer), synthetic leather, etc.

Production Process

Plasticizers are categorized as phthalate-based, trimellitate-based, phosphoric acid-based and epoxy-based depending on the base material it is made from. It is produced by the ester reaction between alcohol such as Octanol(2-EH), INA, etc., and acids such as PA, TPA, TMA, etc. Depending on the base material, different plasticizer grades are produced.

Plasticizer in Daily Life

wire, wallpaper, floor, hose

Wire, wallpaper, flooring, hose

OCI Status

pohang Plant

Pohang Plant

Based on the price competitiveness of Phthalic Anhydride (PA), the base raw material for Plasticizers, OCI produces major Poly Vinyl Chloride phthalate-based Plasticizers (DINP, TINIM, and DINA). In 2016, an exclusive production line for DOTP was added, further expanding OCIs Plasticizer business.

Business Commencement


Production Plant Status

- Pohang Plant (Capa : 65,000MT/yr)
Launched a dedicated DOTP production line (15,000MT/yr) in 2016

Key Point

  • Major Korean Plasticizer Producer

    Supplying stable products while maintaining close relationships with domestic and foreign demand sources for Plasticizers.

  • Cost

    Securing higher cost competitiveness compared to other companies based on coal-based raw materials

  • Responding to Market Change

    Developing new Plasticizers and continuing research in response to changes in demand


  • Product Name : DINP
  • Chemical Formula : C26H42O4
  • CAS No. : 68515-48-0
  • Tel : +82-2-727-9618
  • Product Name : DIDP
  • Chemical Formula : C28H46O4
  • CAS No. : 68515-49-1
  • Tel : +82-2-727-9618
  • Product Name : OC-100(DOTP)
  • Chemical Formula : C24H38O4
  • CAS No. : 6422-86-2
  • Tel : +82-2-727-9618
  • Technical
  • Catalog