THAI OIL PUBLIC COMPANY LIMITED THAI OPTICAL GROUP PUBLIC COMPANY LIMITED THAI PACKAGING & PRINTING PUBLIC COMPANY LIMITED THAI PLASPAC PUBLIC COMPANY LIMITED THAI PLASTIC AND CHEMICALS PUBLIC COMPANY
PUBLIC COMPANY LIMITED THAI NIPPON RUBBER INDUSTRY PUBLIC COMPANY LIMITED THAI NONDESTRUCTIVE TESTING PUBLIC COMPANY LIMITED THAI O.P.P. PUBLIC COMPANY LIMITED THAI OIL PUBLIC COMPANY LIMITED THAI OPTICAL
medical, premium bottles, films and sheets), IPA (Isophthalic Acid for PET production, unsaturated polyester resins, and coatings), NDC (Naphthalene Dicarboxylate for optical displays and industrial