Duong Hieu Trading and Mining Joint Stock Company approved the resignation of member and chairman of BOD of Mr. Le Thanh Tuan from December 28, 2021 and the resignation of Mr. Nguyen Manh Hung as member of BOD from December 28, 2021. The company also approved the appointment of Mrs. Nguyen Thi Dung and Mrs. Le Thi Hong Loan as members of BOD for the term 2017 – 2021.