Visitors at the sites
Westlake Vinnolit is part of the Westlake Group, has its headquarters in Ismaning near Munich and operates four other production sites in Germany.
Our sites

Headquarters in Ismaning
Ismaning is the administrative headquarters with around 100 employees.

Gendorf site
Westlake Vinnolit makes PVC and caustic soda at its Gendorf site. The operations are part of the Gendorf chemical park. Research and development is also based here.

Burghausen site
The Westlake Vinnolit operations for manufacturing PVC are located on the site of the Burghausen plant of Wacker Chemie AG. Burghausen is also home to Westlake Vinnolit application technology.

Cologne site
Westlake Vinnolit’s PVC operations are located on the Cologne-Merkenich chemical park.

Knapsack site
In Knapsack the Westlake Vinnolit operations are integrated into the Knapsack chemical park. Suspension PVC and caustic soda are made here.