WIIK Public Company Limited, together with its subsidiaries, engages in the manufacturing and distribution of plastic pipes and related fitting products in Thailand. The company offers High Density Polyethylene (HDPE) pipes and fittings, including W-HQ pipe for water supply, W-HQ gas pipe, and HDPE pipe for cable stayed bridge; weholite fittings and polyethylene structured-wall pipes with smooth external surface for underground; HDPE fittings for water transportation, such as fabricated bend cut angle, fabricated tee, fabricated forming tee, fabricated sewage tee, spacer ring for butterfly valve, reducer, stub end, backing ring, gasket, compression fittings, electrofusion fittings, injection molded fittings, and puddle flange; W-EP and W-EQ pipes; WehoManholes; WehoTank; W-HQ conduit pipe-straight, W-HQ conduit pipe-rolled/coiled, and HDPE conduit fittings; and WIIK real-time data logger. It also provides polyvinylchloride (PVC) pipes for water supply, PVC yellow conduit pipe and fittings, and white PVC pipes for conduits; polypropylene (PP-R) pipe for plumbing cold/hot water; and low density polyethylene, polypropylene, polybutylene, and weholite spiro pipes. In addition, the company offers butt fusion and hand extrusion welding, site hydrostatic pressure test, and electrofusion welding services, as well as plastic material testing, thermoplastic pipe testing, drinking water HDPE pipe testing, and smooth external surface polyethylene structured-wall pipe for underground testing services. Further, it is involved in water management; water distribution and water supply system; design construction and operation of water supply system; pipe installation services; and water production with ultra filtration and reverse osmosis systems. The company was formerly known as Wiik & Hoeglund Public Company Limited and changed its name to WIIK Public Company Limited in December 2019. WIIK Public Company Limited was founded in 1983 and is headquartered in Bangkok, Thailand.