Peru rejected the EIA study for the deposition facility in December 2018. Credit: jurek d.

Sierra Metals’ Peruvian subsidiary Sociedad Minera Corona has secured approval for its environmental impact assessment (EIA) study to expand the tailings deposition facility at the Yauricocha mine.

The approval was given by SENACE (National Environmental Certification Service), which evaluates natural resources and production projects in Peru.

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Last December, Peru rejected the EIA study for the deposition facility, which further delayed the project.

Sierra Metals president and CEO Igor Gonzales said: “Having now received approval for the EIA study at Yauricocha, we can now proceed to obtain a construction permit for the next phase of the tailings deposition facility and to commence planning for an expanded waste rock facility.

“The company remains committed to strict compliance with regulatory permits in Peru and Mexico in the development and organic growth of all its operating mines.”

“Once those steps have been completed, we would then be able to complete a final submission of an ITS document, which is required for any potential expansion of the mine.

“The company remains committed to strict compliance with regulatory permits in Peru and Mexico in the development and organic growth of all its operating mines.”

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The extension of the tailings facility is expected to allow for a 20% expansion of mine output at Yauricocha to 3,600tpd.

The underground polymetallic Yauricocha mine uses the sublevel block caving and cut-and-fill mining methods.

It has been in continuous operation since 1948 and has an expected mine life of 8.6 years.

Last month, Sierra Metals completed the initial expansion of its Bolivar mine in Mexico, which is set to increase the production rate from 3,000tpd to 3,600tpd in the first quarter of this year.