The company was established in 1961 under the name "Kongsanguan Engineering Co., Ltd." and changed its name to "UHM Co., Ltd." in 1971. We are currently a $30 million conglomerate with over 525 employees.

• In 1982, PB Pipe (Thailand) Co., Ltd. was established.
• In 1984, Thai Aichi Co., Ltd. was established
• In 1993, Kongsanguan Engineering (1993) Co., Ltd. was established.

    Since UHM Co., Ltd. implemented ISO 9001, the company has been more determined to improve the system in its operations. The company has established guidelines for bringing customer satisfaction as a goal in the workplace, emphasizing continuous improvement and development with employee cooperation, and the company has currently received ISO 9001:2015 certification from Management System Certification Institute (MASCI).

    A distributor of various products related to water systems from both domestic and foreign countries to government agencies, general private sectors, as well as industries. The company is currently certified with the ISO 9001 quality system standard, which is based on the principle of "Provide products and services that satisfy customers."

Products

• PB pipe, PE pipe, PP pipe, PP-Brown pipe, PPR pipe, and water meter fittings
• Neodrain pipe and geotextile polyamides
• Centrifugal pumps, vertical pumps, small pumps (Southern Cross, Wilo)
• Motors, Siemens, and plumbing equipment

UHM Co., Ltd. is a dealer of various products related to water systems from both domestic and foreign countries to government agencies and general private sectors.

UHM Co., Ltd. is a manufacturer and distributor under the PBP and TAC brands, as well as an importer of plumbing equipment, such as pumps and motors, from abroad.

    PB Pipe (Thailand) Co., Ltd. was founded 11 years later, in 1982, to manufacture PB pipe, a heat-resistant polymer made from polybutylene resin imported from Shell Company, a company that manufactures PB, PE, and PP pipes with fittings for plumbing and industrial applications in both the general public and private sectors. Furthermore, the company has designed and developed various joints to enable quick and economical installation with a strong emphasis on quality at every stage of production. Therefore, our PB and HDPE pipes have received the Thai Industrial Standard (TIS) and have been certified with the ISO 9001 quality system standard.

Pipe Products

• PB pipe for piping service work, size 15-100 mm.
• HDPE pipe for main piping work, size 110-315 mm.
• PP pipe for wastewater and chemical work, all types of fittings

    In 2009, Thai Aichi Co., Ltd. changed its name to Saha Meter Co., Ltd. The water meter was designed and manufactured with special metrology technology under the modern manufacturing techniques of Aichi Tokei Denki Co., Ltd. in Japan. It has over a century of experience in designing and manufacturing water meters, making them highly precise and durable. Each part is meticulously designed according to engineering principles, and all models of water meters have went through and qualified in the manufacturing process. The quality is thoroughly controlled at every step by inspecting the accuracy of each piece (100% inspection). Therefore, it has received quality and accuracy certification from the Ministry of Commerce and the Office of Industrial Product Standards (TIS 1021-2534), as well as ISO 9001 quality system certification.
    Saha Meter Co., Ltd. was established after obtaining a license from Japan's Aichi Tokei Denki Co., Ltd. to manufacture and distribute water meters for domestic use as well as export to Southeast Asia region.

Water Meter Products

• Thai Aishi (TAC) and AICO water meters, and brass fittings

Products

• Muti-jet Turbine water meter for Metropolitan Waterworks Authority and Provincial Waterworks Authority
• Single-jet Turbine water meter for projects, apartments, condominiums, village plumbing, and exports to Southeast Asia region

    A company that designs, installs, and provides advices in the water supply systems for public and private sectors, in collaboration with a team of expert engineers. It also distributes springer equipment from the United States for use on golf courses, landscape projects, and national stadium events.

    As the UHM group foresaw the opportunity of Vietnam's growing and potential market, UHM Vietnam was established in 2007 to supply HDPE pipes, HDPE fittings, and plastic and brass water meters to the Vietnamese waterworks and private sectors.