Authorities in Brazil are cracking down on illegal copper mining in the Amazon as high prices of the wiring metal attract black-market operators who normally focus on gold.
Earlier last month, 50 agents dismantled illicit mines in Canaa dos Carajas — near Vale SA’s biggest copper mine, Sossego — after two similar actions last year.
There are signs the metal has been shipped to China, task force leader Ezequias Martins said through his press office.
The case might lead to convictions for environmental crimes and criminal association, he said.
Informal miners, known in Brazil as garimpeiros, have diversified into copper in the past few years as techniques improve and prices surge on growing battery-metal demand in the shift away from fossil fuels. At the same time, major mining companies are looking to add copper assets. Vale wants to raise money to grow its base metals business.
While illegal production accounts for a tiny portion of total copper supply, it can have an outsized impact on the environment and indigenous communities.
Brazilian President Luiz Inacio Lula da Silva’s government has vowed to crack down on Brazil’s illegal gold rush, with non-government organization MapBiomas estimating that irregular operations occupy a larger area than industrial mines in the country.
The clandestine copper mines demobilized this month are the so-called gallery type, in which explosives are used to blast out ore containing copper and gold. Some galleries can extract 30 tonnes a day.
Copper trades at about US$9,000 per tonne in London versus less than US$5,000 three years earlier.
The environmental and community damage caused by such practices are a threat to the formal industry by tarnishing the reputation of mining in general.
The illegal mining push has started to encroach into land held by Vale, the world’s No. 2 iron ore producer and a major supplier of nickel and copper.
With illicit miners hunting for copper, Vale has reinforced monitoring and provides intelligence to the Brazilian National Mining Agency on clandestine operations on its land, the company said.
“In addition to constituting a crime, the practice imposes drastic impacts on the environment, public coffers, security and the attraction of investments and the implementation of new enterprises,” Vale said.
Copper for May delivery was unchanged on Friday at US$4.09 per pound, up 0.25 percent from last week.
Other commodities:
‧ Gold for June delivery fell US$11.50 to US$1,986.20 per ounce, gaining 0.12 percent for the week.
‧ Silver for May delivery rose US$0.17 to US$24.16, rising 3.51 percent weekly.
Additional reporting by staff writer, with AP
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