International Research Corporation Public Company Limited announced that Mr. Siwa Sangmanee, Chairman of Audit Committee; Mr. Ekawat Piriyawarasakul, Audit Committee, Nomination and Remuneration Committee has resigned from position of Director (Independent Director) and Audit Committee, Nomination and Remuneration Committee due to more missions, unable to perform their duties fully. The resignation will be effective from July 1, 2021 onwards.