Chemical maker Westlake Corp. and its subsidiary Westlake Vinnolit GmbH & Co. KG have entered a non-binding letter of intent to potentially acquire an insolvent polyvinyl chloride (PVC) and vinyl chloride monomer (VCM) production site in Wilhelmshaven, Germany. The plant had been operated by Belgium-based Vynova Group. The facility, which also makes vinyl chloride monomer feedstock, had filed for insolvency in December. If it goes through, the d…