Sri Trang Agro-Industry Public Company Limited was held the Grand Opening of " Udon Thani branch", the 4th rubber plant in northeastern Thailand of Sri Trang Group on February 19, 2556 honored by the UdonThani Provincial Governor, along with Mr. Prasit Panidkul, Mr. Chaiyos Sincharoenkul, Group Manager, Factory Manager, and staff representative from other branches.