Increased output from its mines in Peru and Argentina also helped the company slash first-half interim loss.
Authorities said Grupo Mexico lied about a spill of 40,000 cubic meters of acids and heavy metals that contaminated two rivers and a dam in the northern state of Sonora.
World's largest primary silver mine by annual production is BHP Billiton's.
Who were the top earners in 2013?
Chief Executive Officer Andrew Mackenzie said the project ramains in BHP's main plans, but added the firm is not in a rush to develop it.
The Peruvian firm will develop the deposit as an underground mine, instead of as an open-pit project.
ETF buyers pick up more silver and gold as large investors increase bullish bets 28% and billionaire George Soros doubles his money in gold stocks.
World's number one miner hopes to save $3.6 billion spinning off aluminium, coal, manganese, nickel and silver assets into new company.
The miner is reviewing all options on its 53.83% stake in Bougainville Copper, the operator of its Paguna mine, which has a potential gold and copper resource worth over $60 billion.
Taking on the Market Vectors Gold Miners ETF.
A welcome advance on the old silver fix.
The silver price is more cautious and tending to slip as it waits for the gold price to give it direction, says Julian Phillips.
But participants setting benchmark price for $5 trillion market still not known.
An appeal case on the company’s right to mine in Egypt is seen taking until next year to resolve.
The 18 cases will be sent to U.S. District Judge Valerie Caproni in Manhattan, who has already been overseeing a putative class-action against the five banks that make up the fix.
Q2 study shows decline in global gold demand, but US and UK jewelry buying surges and central banks add to holdings for a 14th straight quarter.
Band cites Mount Polley disaster in rejecting mine development.
Grupo Mexico has denied reports claiming it did not immediately report a massive acid spill from its Buenavista mine in the country's north.
Output at the company's mines reached a record 3,855,223 silver equiv. oz., up 6% from the previous quarter.
A case in point: AngloGold Ashanti's Americas division produced gold at $765 per ounce, almost $100 an ounce less than its South African operations.
Talks ahead of September 30 funding deadline continue and feasibility study for $5bn expansion of Mongolia mine almost complete, but huge gaps remain.
"My view is that it's all about real return."
"We have two once pristine lakes that are now Imperial Metals tailings ponds."
While Canada and the U.S. look at Mount Polley disaster's aftermath, another big spill has contaminated rivers a bit further south.
No bank has publicly stepped forward to say they will be involved in the new silver benchmark.
Firm also working to restructure Obuasi mine in Ghana.
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