Formosa Plastics Group and its core constituent companies operate primarily as premier petrochemical and plastics manufacturing enterprises. The conglomerate commands immense capacity in upstream oil refining, naphtha cracking, and the synthesis of foundational chemical intermediates like ethylene and propylene. These feedstocks are processed directly into essential polymers, resins, and synthetic fibers, solidifying its standing as one of the most comprehensive and vertically integrated petrochemical powerhouses in the global industrial landscape.