Opc Pharmaceutical Joint Stock Company announced resignation of Le Van Son as Chairman of the BOD, Nguyen Hai Duong as Member of the BOD, Nguyen Trung Thanh as Member of the Supervisory Board and appointment of Hoang Le Son as Chairman of the BOD, Pham Thi Xuan Huong as Member of the BOD cum General Director, Nguyen Anh Vu as Member of the Supervisory Board.