Westlake, a manufacturer and supplier of materials and innovative products, completed the acquisition of Dimex, a processor of recycled plastic materials, from Grey Mountain Partners, a private equity firm. Financial terms were not disclosed. "The acquisition of Dimex underscores our longstanding commitment to stewardship of the environment and recycling, and to taking actions that contribute to a sustainable, circular economy,” Robert Buesinger, Westlake Chemical Executive Vice President.