By coming into the factory construction in an area of approximately 1000 acres of their estate. Ubolratana dam A. water Pong. Khon Kaen province and start a production in the year 2525 (1982)
The construction of factories in the area for approximately 1,000 rai of industrial self-development Ubonratana Dam, Nam Phong Khon Kaen and began to walk in the year 2525 production.