The Pitarrilla project, 160 km north of the city of Durango, has measured and indicated resources of 164.7 million tonnes grading 99.1 grams silver per tonne.
Imports of unwrought copper and copper products for the year totalled 5.53 million tonnes, down 17.2% from 2020's record volume of 6.68 million tonnes.
Indonesia has played a key role in global markets as a bulk materials supplier, but President Joko Widodo has pledged to eventually stop exports of all raw commodities to turn the country into a major manufacturing hub for electric transportation.
Gov't expects $25bn in investments related to 34 projects currently in advanced exploration, as the deadline to restructure billions in debt to the IMF looms.