On November 11, 2020, Mr. Monchai BOONAIM, Managing Director of PTT (Lao) Co., Ltd., together with the administrators and staffs of PTT (Lao) celebrated the 27th anniversary of PTT (Lao) Co., Ltd. at PTT (Lao) Headquarter, a ceremony was held to pay homage to the Patriarch and Basi for the glory of PTT (Lao) Co., Ltd.