Somkiat Vongsarojana

Part of Rich Asia Corp. Public Co. Ltd., Siam Ferro Industry Co. Ltd. is a Thai company that manufactures basic iron and steel pipes. The company is based in Bangkok, Thailand. Siam Ferro Industry Co. was acquired by Rich Asia Corp. Public Co. Ltd. from Network Development Co., Ltd. on April 04, 2011 for $26.51 million.

Rich Asia Corp. Public Co. Ltd. engages in the manufacture, trade and distribution of various types of steel products including raw materials and finished products. Its products include structural steel pipes, hot rolled coil and sheets, billets, and others as well as being manufacturer and distributor of steel pipe and C-channel with company's policy of being a manufacturer, trader and distributors of all types and sizes of steel products. The company was founded on May 10, 1999 and is headquartered in Bangkok, Thailand.

Thai National Product Co. Ltd. is a company that specializes in the production of spun piles with diameters ranging from 250mm to 800mm. The private company is based in Nonthaburi, Thailand. The company's focus is on innovation and new development to support various project sizes. Thai National Product Co. was acquired by Thai National Product Co. /Private Group/ from Rich Asia Corp. Public Co. Ltd. on December 03, 2014 for $16.61 million.