Relations with the Major Shareholder’s Business Groups GC is part of the Petrochemicals and Refining Business Group under the Downstream Petroleum Business Group of PTT Public Company Limited, as shown in the charts below, which show PTT’s management structure, subsidiaries, and shareholding by business group respectively. PTT’s Management Structure Gas Business Petrochemical and Refinery, Oil and Retail Business Engineering and Infrastructure International Trading Business Innovation and New Ventures New Business and Infrastructure Group Upstream Petroleum and Gas Business Downstream Business Group 80
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