PTT Asahi Chemical Company Limited (PTTAC), a company of the PTT Group, is a joint venture of PTT Public Company Limited (PTT), Thailand’s National Energy Company, Asahi Kasei Chemicals Corporation (AKCC) of Japan, the world’s leading petrochemicals producer, and Marubeni Corporation (Marubeni) of Japan, one of the world’s leading petrochemicals traders with the shareholding ratio of 48.5%, 48.5% and 3% respectively. PTTAC receives joint support from the shareholders with strengths in technology, feedstock, operations and marketing.