1976-78 he worked as parish priest at the Nongkhai Mission, Diocese of Udon Thani; 1979-81 he was rector of the Redemptorist Seminary Minor at Si Racha; 1981-87 parish priest at the Holy Redeemer Church in Bangkok; 1987-92 parish priest at Bannoi, Khonkaen, Udon Thani diocese; 1993-2002 director of Social Work at Pattaya, Diocese of Chanthaburi.