Transatlantic Mining Corp. News Releases

Outer Rim Exploration Detects Copper Mineralization Using OreScope Muon Imaging at Transatlantic Monitor Project

Mon, 11 May 2026 07:30:00 -0400

Vancouver, British Columbia--(Newsfile Corp. - May 11, 2026) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") and Outer Rim Exploration (ORE) announce the successful completion of a muon imaging survey at the Monitor Copper-Gold Project in Idaho, marking the first North American deployment of ORE's portable muon hodoscope for mineral exploration.The underground campaign successfully detected a density anomaly aligned with the known steeply dipping chalcopyrite-bearing structure and...

Transatlantic Provides Exploration Update for its Copper and Gold Projects in Montana, Idaho

Tue, 05 May 2026 07:30:00 -0400

Vancouver, British Columbia--(Newsfile Corp. - May 5, 2026) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to provide an exploration update on its three key projects in Montana and Idaho: The Miller Mine and Golden Jubilee gold projects in Montana, and the Monitor copper-gold project in Montana-Idaho.The Miller Mine drill permits have been submitted for approval and are in process for the surface drilling. The company has now received an extended permit for underground...

Transatlantic Announces Extension of Exploration Permit for Golden Jubilee Project, Montana

Wed, 01 Apr 2026 07:30:00 -0400

Vancouver, British Columbia--(Newsfile Corp. - April 1, 2026) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to announce that the US Department of Agriculture has extended and approved the Plan of Operation of the Golden Jubilee project located in Granite County, Montana.Drilling at Golden Jubilee previously disclosed Sept 8, 2025, was postponed due to oncoming winter weather conditions. Drill contractors were unable to safely mobilize before the interim permit terminated...

Transatlantic Intercepts up to 6.0 g/t Au and 13.71 g/t Ag over 1.5 Meters at the Historic Miller Gold Mine, Montana

Fri, 23 Jan 2026 13:39:00 -0500

Vancouver, British Columbia--(Newsfile Corp. - January 23, 2026) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to provide assay and sample results from its Phase 1, 25 hole drill program at the Miller Gold Mine in Montana, USA.The assay and drill highlights are:Surface reverse circulation drilling Focused on sampling and assaying of the granodiorite/sediment contact with drill results up to 1.5 metres at 6.0 g/t Au and 13.71 g/t Ag in hole MMRC_2514.The complete set of...

Outer Rim Exploration Launches Maiden Muon Imaging Survey for Copper Mineralisation with Transatlantic Mining

Mon, 15 Dec 2025 07:30:00 -0500

Vancouver, British Columbia--(Newsfile Corp. - December 15, 2025) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to announce the company has engaged a maiden technical trial with Outer Rim Exploration ("ORE") utilising a new Muon enhanced technique to identify voids and new mineralisation association at its Monitor Copper Gold project in Idaho USA. The campaign marks the first North American deployment of ORE's portable muon hodoscope for the mining industry. The survey...

Transatlantic Announces Maiden Technical Report and Exploration Target for Monitor Copper Gold Project

Mon, 01 Dec 2025 07:30:00 -0500

Three Copper Siderite Vein Exploration Targets Established Phased Development Strategy Targets Bulk Sample Potential Vancouver, British Columbia--(Newsfile Corp. - December 1, 2025) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to announce the completion and filing of its maiden NI 43-101 technical report for the Monitor Copper Project, an 80%-owned joint venture property located in Shoshone County, Idaho and Mineral County, Montana.Highlights:Initial NI 43-101 technical...

Transatlantic Obtains Permit for Additional Drilling, Dewatering at Golden Jubilee Project, Montana

Mon, 08 Sep 2025 07:30:00 -0400

Vancouver, British Columbia--(Newsfile Corp. - September 8, 2025) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to announce the company has received its permit from the United States Forrest Service for new drilling and dewatering at its Golden Jubilee project, located in Granite County, Montana. The permit is approved to December 1, 2025. Previous drilling by Transatlantic at the Golden Jubilee Mine announced on April 13, 2023, consisted of 10 reverse circulation holes for...

Transatlantic Provides Update on Drilling at the Historic Miller Gold Mine, Montana

Wed, 27 Aug 2025 13:59:00 -0400

Vancouver, British Columbia--(Newsfile Corp. - August 27, 2025) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to provide an update on drilling at the historic Miller Mine in Montana, USA.On December 21, 2020 Transatlantic exercised its initial option term to acquire 100% of the Miller Mine located in the Broadwater County in the State of Montana , USA. These claims are approximately 29 miles to the northeast of Townsend in Montana USA with gold mineralization that has been...

Transatlantic Samples 3.1% Cu over 0.3 Metres at Monitor Project - Anvil Prospect

Mon, 21 Jul 2025 07:30:00 -0400

Vancouver, British Columbia--(Newsfile Corp. - July 21, 2025) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to provide an update on its exploration activities at the Anvil prospect, key target within the larger Monitor Copper-Gold Project. The project is located approximately 8 kilometers south of Taft, Idaho, USA and continues to demonstrate prospectivity.Highlights of the Exploration Program:High-Grade Underground samples at Anvil: An outcrop sample returned 3.1% copper...

Transatlantic Samples 36.1% Cu over 2.6 metres at Monitor Project - Big Elk Prospect

Mon, 14 Jul 2025 07:30:00 -0400

Vancouver, British Columbia--(Newsfile Corp. - July 14, 2025) - Transatlantic Mining Corp. (TSXV: TCO) (the "Company") is pleased to provide an update on its exploration activities at the Big Elk and Anvil prospects, key targets within the larger Monitor Copper-Gold Project. The project is located approximately 8 kilometers south of Taft, Idaho, USA and continues to demonstrate prospectivity.Highlights of the Exploration Program:High-Grade Surface Samples at Big Elk: An outcrop sample returned...