Orosur Mining earns full ownership of El Pantano after drilling confirms large epithermal system (LSE:OMI)

Orosur Mining (LSE:OMI) has completed its maiden diamond drilling programme at the El Pantano gold-silver project in Argentina, with results confirming the presence of a significant low-sulphidation epithermal system. The exploration campaign comprised 24 drill holes totalling 5,533 metres, while the company has also submitted a NI 43-101 technical report outlining the project’s geological, geochemical and structural characteristics.

Drilling highlights strong exploration potential

The programme identified structurally controlled gold-bearing vein corridors within the El Pantano West target, while drilling beneath the silica cap at El Pantano East intersected extensive arsenic-rich pathfinder zones. Together, the results indicate the presence of a large, interconnected hydrothermal system that could host additional mineralisation across the project.

Management believes the findings provide strong support for its exploration model and will help guide future drilling aimed at testing high-priority feeder structures and extensions of the mineralised system.

Company secures 100% interest in project

Orosur has now earned full ownership of the El Pantano project after completing the required US$3 million exploration commitment ahead of schedule. The company holds a 100% interest in the asset, subject only to a small net smelter return (NSR) royalty.

With the earn-in complete, Orosur is preparing the next phase of exploration, which will focus on expanding known mineralised zones and identifying new targets that could support future resource growth.

About Orosur Mining

Orosur Mining Inc., listed on the TSX Venture Exchange and AIM under the ticker OMI, is a South American gold and silver exploration company focused on advancing early-stage mineral projects. Its flagship El Pantano project covers approximately 560 square kilometres within Argentina’s Deseado Massif, one of the country’s most prospective precious metals regions.

Located near established mining operations including AngloGold’s Cerro Vanguardia and Newmont’s Cerro Negro mines, El Pantano offers exposure to a well-known gold-producing district with significant exploration potential.