·TAPIOCA DEVELOPMENT CORP., LTD
·THAI WAH STARCH PUBLIC CO., LT
·NORTHEASTERN STARCH (1987) CO.
·CHAO KHUN AGRO PRODUCTS CO., L
·ROI ET FLOUR CO., LTD.
·BANGNA TAPIOCA FLOUR CO., LTD.
·BANPONG TAPIOCA FLOUR INDUSTRI
·SANGUAN WONGSE INDUSTRIES CO.,
·CHAIYAPHUM PLANT PRODUCTS CO.,