Mr. Vithaya Punmongkol, Deputy Governor (Operations) participated in signing the book of blessing to Queen Sirikit on the occasion of H.M. 90th birthday on Friday 12th August 2022 at Sahathai Samakom Pavillion, the Grand Palace where Mr. Chayatan Phromsorn, Permanent Secretary of Ministry of Transport (MOT) led executives and head of organizations under MOT join in the sign.