Several PTT Group chief executives are retiring or changing: PTT's CEO retires in April 2027, PTTEP's new CEO starts 1 October 2026, OR is recruiting a successor (applications 22 Sept to 5 Oct 2026), and GPSC's CEO retires in October 2026. Thai Airways' CEO term ends January 2027. For an SME owner this is background only. Nothing to change in pricing, staffing or budgeting, unless you supply these companies, where new leadership may shift procurement later.