Amerigo Resumes Processing Fresh Tailings, Production Guidance Update to Come

Disclosure: Sponsored content on behalf of Amerigo Resources

Highlights

  • El Teniente restarts operations and is sending fresh tailings to MVC

  • Historic tailings processing remains ongoing

  • Timing of normalized operations at El Teniente to determine impact on MVC guidance

Amerigo Resources Ltd. (TSX: ARG; OTCQX: ARREF) provided an operational update on Minera Valle Central (“MVC”), its 100% owned operation located near Rancagua, Chile.

On Saturday, August 9, 2025, the El Teniente underground copper mine received approval from Chile’s National Geology and Mining Service and the Labour Directorate to restart operations in eight of the twelve underground sectors. Four sectors remain temporarily shut down. Operations at El Teniente have resumed in accordance with a safety restart plan. Following the restart of operations at El Teniente, MVC started receiving fresh tailings during the night of Sunday, August 10, 2025.

As reported in the Company’s news release of August 6, 2025, operations at the El Teniente underground copper mine, owned by Corporación Nacional del Cobre de Chile (“Codelco”), were suspended on the evening of July 31, 2025. This followed a seismic event that, unfortunately, resulted in the death of six workers. While operations at the mine and the supply of fresh tailings to MVC were suspended, Amerigo continued to process historic tailings.

MVC is now processing fresh tailings from El Teniente and also handling historic tailings. Until operations at El Teniente are normalized, Amerigo expects daily throughput from the fresh tailings to be lower than initially forecast in MVC’s 2025 production schedule.

To the extent possible, MVC will mitigate any production impacts by increasing the processing of historic tailings. Once we have data on El Teniente’s throughput over the next few days, we will provide a production update.Aurora Davidson, President & CEO, Amerigo Resources Inc.

Amerigo Resources is a market awareness client of Capital 10X. For more information, including potential conflicts of interest please see our Content Disclaimer.

Duane Hope is a Partner at Capital 10X, he brings over 15 years of communications and research experience to the firm. His research and writing have appeared in publications for North American, European and Asian audiences.

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