Johan Anders Heikfolk

Part of Uponor Infra Oy, WH Holding Co., Ltd. is a holding Thai company that has an interest in plastic pipes. The company is based in Bangkok, Thailand. The CEO of the company is Burin Kunatippapong.

KWH-koncernen Ab manufactures pipes, abrasives, plastic, and plumbing products. The firm provides storage services. It also offers freight forwarding and logistics services. The company was founded in 1929 and is headquartered in Vaasa, Finland.

KWH Pipe Oy AB manufactures plastic pipes for applications such as water, sewage, gas, and irrigation purposes. It offers plastic pipes made of polyethylene, polypropylene, and polyvinylchloride materials, manholes, inspection chambers, fittings, and accessories. The firm designs and manufactures machinery for the plastics industry including production technology for polyurethane insulated pipes, polyolefin welding equipment, and polyurethane dispensing technology. KWH Pipe was founded in 1929 by Emil Höglund and Edvin Wiik and is headquartered in Vaasa, Finland.

Uponor Infra Oy provides installation of infrastructure pipe systems. It specializes in insulated piping, drainage, sewage systems, underfloor heating and cooling. The company was founded in 1982 is headquartered in Nastola, Finland.