An alliance of complementary strengths, the OPTIMAL Group of Companies ( OPTIMAL
) harnesses the synergy of two forerunners in the industry ie. Petroliam Nasional
Berhad ( PETRONAS ), Malaysia’s state-owned oil corporation and The Dow Chemical
Company ( Dow ) of the US. The Company was established in July 1998 to develop a
world class integrated petrochemical facility in Kertih, Terengganu, Malaysia.