Unimit Engineering Public Company Limited, together with its subsidiaries, engages in the design, shop fabrication, field installation, and erection of steel products and construction works in Thailand and internationally. It offers pressure vessels, including columns/towers, cryogenic tanks, shell and tube heat exchangers, spherical tanks, and vessels/drums, as well as LPG tanks comprising LPG aboveground and underground tanks, and self-support tanks; and machinery parts, such as diverters, fan casings,pre heaters, furnace casings, stacks and chimneys, and water treatment parts. The company also provides storage tanks, including API storage tanks and silo hopper products; steel structures, piping shop fabrication products, and platforms and ladders; and mechanical installation services, such as piping and equipment installations, module works, and shut down and modification works services. The company was founded in 1982 and is headquartered in Samut Prakan, Thailand.