Open-pit mining of lignite

RCEA: Open-pit mining of lignite

PSRN: 1042202065960, INN: 2223046193;

RCEA: Open-pit mining of lignite

PSRN: 1132223009170, INN: 2223594182;

RCEA: Open-pit mining of lignite

PSRN: 1142223008476, INN: 2223599945;

RCEA: Open-pit mining of lignite

PSRN: 1182225006017, INN: 2274004868;