Padaeng Industry was established on April, 10,1981 and was listed on the Stock Exchange of Thailand on July 21, 1987 and was converted into a public company limited on February 4, 1994. In 1996, the company increased its registered capital to Bt2.26 billion, which was fully paid-up in 2000.

The company's core products are Special High Grade (SHG) zinc metal and value-added zinc alloys, raw materials used in a variety of industries. To date, Padaeng Industry operates the only zinc smelter in Southeast Asia, with an annual production capacity of 110,000 metric tons of zinc metal and alloys. The company's zinc mine and smelter are located in Tak province; the roaster plant is located in Rayong province and the head office in Bangkok.

Padaeng Industry employs 1,057 people.