Professional Waste Technology (1999) Public Company Limited, together with its subsidiaries, provides industrial waste treatment services in Thailand. Its industrial waste treatment or hazardous and non-hazardous unused supplies include waste transportation, segregate and waste landfill, and waste water from industry, as well as trading and melting for metals. It also distributes raw materials, aluminum, aluminum scrap, and various metals. The company was founded in 1999 and is based in Bangkok, Thailand.