Who are we ?

Vencorex is a JV between PTT Global Chemical, Thailand’s largest and Asia’s leading integrated petrochemical and refining company, and the Perstorp Group, world leader in several sectors of the specialty chemicals market.

Vencorex is the owner of technology and a major manufacturer of isocyanates, particularly toluene diisocyanate (TDI), hexamethylene diisocyanate (HDI, IPDI) and its derivatives.

Watch Vencorex Film

Strategy & vision

We aim to be a CORE partner in Polyurethane market, with ambition to grow.

  • HDI & Derivates: sustain our ww#2 leading position, capture the growth by increasing our worldwide footprint
  • TDI & Chlor-Alkali: reliability in customer and operational excellence, sustainability

A global player

  • Based on the isocyanates chemistry, such as HDI, IPDI, HDI derivatives, as well as TDI and Chlor-Alkali
  • Manufacturing sites at Pont-de-Claix (France) and Freeport (USA)
  • Worldwide Commercial representations, partially through Perstorp’s existing sales organization.


Key figures

  • 650 employees
  • Shaped by a culture of INNOVATION
  • Supported by multicultural and international teams

Sites location

Pont-de-Claix site in Grenoble Chemical Park

Grenoble Chemical Park is the pillar of the chemical industry in the French Alps.

  • Dedicated to the manufacturing of aromatic (TDI) and Aliphatic Isocyanates (IPDI, HDI and derivates) with chlorine and phosgene downstream productions.
  • Pont de Claix provides best-in-class expertise activity in an attractive international environment
  • Pont de Claix platform hosts  8 operating companies in 121 ha, invests yearly more than 42 M€, 50% dedicated to EHS.
  • Quality certifications: ISO 9001:2008, ISO 14001: 2004
  • More information about Pont de Claix / Grenoble chemical park

Freeport site in Brazosport Chemical complex

A dedicated production with expert teams

  • Located in Brazosport, Texas, the home of the largest basic chemical complex in the world,
  • Freeport site relies on expert teams, dedicated to the production of  HDI derivatives.
  • Products are delivered to the whole American market, as well as to Asia.
  • Quality certifications: ISO 9001:2008, ISO 14001: 2004
  • Click to get our General Terms and Conditions of Purchase



Saint Fons  site, Lyon

The Vencorex Research Center (VRC) in  Saint Fons, Lyon area, gathers a community of scientists dedicated to Innovation, Market Development and Process development. Our teams of experts are focusing on Applications formulations, Process design, Chemical synthesis and analysis.

St Fons site is located in the heart of the CRTL (Centre for Research and Technology, Lyon) which groups more than 500 people in R&D from different chemical companies.


Saint Priest site in Lyon and Saint Denis site in Paris

Close to St Exupery airport in Lyon is the Saint Priest site : Vencorex headquarters.
Saint Priest hosts all support functions and General management : Operations, HR, Finance… as well as the Customer Service.

Saint Denis site, near Paris, is associated to Saint Priest and hosts business and commercial  offices.