Pramuan Leophairatana

Thai Nitrate Co. Ltd. is manufactures nitric acid. It products include nitric acid, porous ammonium nitrate and medical grade ammonium nitrate. The company was founded on October 30, 1990 and is headquartered in Bangkok, Thailand.

Part of Millcon Steel Public Co. Ltd., Thai Special Steel Industry Public Co. Ltd. is a steel manufacturing company based in Bangkok, Thailand. Thai Special Steel Industry Public Co. was acquired by MillCon (HK) Ltd.

Part of TPI Polene Public Co. Ltd., TPI All Seasons Co. Ltd. is a Thai company that manufactures and supplies EVA encapsulant sheets. The company is based in Bangkok, Thailand.

Part of TPI Polene Public Co. Ltd., Mondo Thai Co. Ltd. owns and operates real estate properties. The company is based in Bangkok, Thailand. Mondo Thai Co. was acquired by TPI Concrete Co. Ltd. on June 29, 2015 for $0.60 million.

Part of TPI Polene Public Co. Ltd., Polene Plastic Co., Ltd. is a company based in Bangkok, Thailand. The Thai company's main focus is on producing and distributing high-quality products such as construction materials, agricultural products, and health products like drinking water and liquid soap.

Part of TPI Polene Public Co. Ltd., TPI Intertrade Co., Ltd. engages in cement and plastic production. The company is based in Bangkok, Thailand. TPI Intertrade Co. was acquired by TPI Polene Public Co. Ltd. on July 24, 2015 for $0.0 million.

Part of TPI Polene Public Co. Ltd., TPI Refinery (1997) Co., Ltd. is a Thai company that manufactures raw materials and chemical products. The company is based in Bangkok, Thailand. TPI Refinery (1997) Co. was acquired by TPI Polene Public Co. Ltd. from Leophairatana Enterprise Co. Ltd. on June 26, 2015 for $0.02 million.