Lauca Biosphere Reserve Endangered

In one hand the government has just expanded the Araucarias Biosphere Reserve (situated in south-central Chile in the southern part of the volcanic Andean chain) from 93,833 hectares to 140,000 hectares. This is good news, right?

But in the other hand the same government wants to take 15% off of the 358,312 hectares that conforms the Lauca Biosphere Reserve (situated in the Puna biogeographic region, in the northern part of Chile in the Andean Chain) so they can extract copper, gold and silver. Without even minding international treaties and the original aymara people, who have been inhabiting those lands for centuries

Is it just me, or this doesn’t make any sense?