Vietnam National Coal and Mineral Industries Group

Deputy Editor-in-Chief: Pham Huu Chuong

Managing Editor: Pham Dinh Dung

Head Office: 35 Nam Ky Khoi Nghia Street, District 1, Ho Chi Minh City, Vietnam. Tel: (84.28) 3829 5936; Fax: (84.28) 3829 4294

Publication Permit No. 41/GP-CBC issued on June 2, 2021 by the Authority of Press. All rights reserved.