Starcore International Mines (TSX:SAM) produced 166 ounces of gold-equivalent for the three months to July 2025 from a milling of 5,370 tons of stockpiled ore at the San Martin Mine in Mexico.
The ore graded 1.91 grams per tonne gold and 17.5g/t silver and with recoveries of 75% for gold and 65% for silver.
During the quarter ending on 31 July, the carbon-in-leach (CIL) process for carbonaceous ore was fine-tuned and necessary adjustments were made to optimise the process.
Starcore says the mine is ramping up its production of carbon ore with better grades.
COO Salvador García says the new CIL plant represents a great alternative to process ore that cannot be treated by cyanidation as is the case of the ore from the San Jose Mine.
The company notes the San Jose Mine area – located in the southern part of San Martin – has yielded considerable reserves at depth. The reserves are being developed and processed to feed the oxide plant, along with the ore from the San Martin mine.
However, the recoveries were found to be slightly lower than those from the San Martin ore as it was determined that the clays have a preg-robbing effect, absorbing gold and silver from the oxidised ore when in contact with the cyanide solution during processing.
As a result, this caused high-solids tailings and lower recoveries, as reflected in the quarter’s result.
San Martin is a gold and silver mine that has been operating since 1993 at 350 tonnes per day and currently operates at 850 tonnes per day.
According to Trading Economics, gold prices edged lower to US$3,330 ($5,132.91) per ounce on Monday, as investors focused on US President Donald Trump’s meeting with Ukrainian and European leaders and the Federal Reserve’s annual Jackson Hole symposium.
Gold’s spot price sat at US$3,332.80 per ounce as of 12.15pm AEST today.
Starcore International Mines is engaged in precious metals production with a focus and experience in Mexico.
Write to Aaliyah Rogan at Mining.com.au
Images: Starcore International Mines
