Preparation of the Environmental Impact Study for the processing of the environmental license for the underground coal mining project in the Esmeralda Guadalupe formalization polygon according to AUTO VSC 149 of the VICE PRESIDENCY OF MONITORING, CONTROL AND MINING SAFETY
NATIONAL INTEREST PROJECTS GROUP,

Preparation of the Environmental Impact Study for the processing of the environmental license for the underground coal mining project in the polygon of
Formalization Esmeralda Lizarazo designated to the return process under formalization of the contract by virtue of contribution No. 070-89 with file number 47323-0 in the National Mining Agency.