Morning Briefing: IAMGOLD Publishes New Resource for Côté
Good morning and welcome back to the Mining Stock Daily morning briefing. I am Trevor Hall.
It's Monday, June 1.
After breaching $4,600 on Friday, gold is giving some back this morning — down just over 1% to $4,537 an ounce. Silver is bucking the move, up seven-tenths to $75.86, and copper is the standout, rallying more than 2% to $6.54 a pound.
The backdrop is still Iran, but the read is more two-sided today. Over the weekend, U.S. Central Command struck Iranian radar and drone sites at Goruk and on Qeshm island; this morning, Iran's Revolutionary Guard says it hit a U.S. airbase in the Gulf in response, and Kuwait again intercepted incoming missiles and drones overnight. So the sporadic exchanges under this April ceasefire continue, with Iran's blockade of the Strait of Hormuz — a waterway that carried roughly a fifth of the world's oil and LNG before the war — still the pressure point. And yet gold is pulling back. The tell is on the diplomatic side: President Trump says he's close to a deal, even as reporting suggests he's toughened the terms and sent the framework back to Tehran. That optimism, layered on profit-taking after Friday's run through $4,600, is enough to cap the safe-haven bid for now — while copper's rally tells you risk appetite this morning isn't broadly defensive.
We’ll get to the news from the miners and explorers in just a moment, but first a word about today’s sponsor.
This episode of Mining Stock Daily is brought to you by…Integra Resources
Integra is a growing precious metals producer in the Great Basin of the Western United States. Integra is focused on demonstrating profitability and operational excellence at its principal operating asset, the Florida Canyon Mine, located in Nevada. In addition, Integra is committed to advancing its flagship development-stage heap leach projects: the past producing DeLamar Project located in southwestern Idaho, and the Nevada North Project located in western Nevada. Learn more about the business and their high industry standards over at integraresources.com
Here's what you need to know today.
IAMGOLD has published a consolidated mineral resource estimate for its Côté Gold mine in Ontario, integrating the producing Côté deposit, the adjacent Gosselin zone, and the connecting saddle area between them into a single geological and resource framework. On a 100% basis, Measured and Indicated resources now stand at 20.3 million ounces of gold — an increase of roughly 2.2 million ounces, or 12%, over the year-end 2025 statement — while Inferred resources jumped 61%, or 1.3 million ounces, to 3.5 million ounces. The update will feed the upcoming Côté Gold technical report and mine plan, still on track for the fourth quarter, which is expected to evaluate a plant expansion — prior guidance pointed to lifting throughput from 36,000 tonnes per day toward 50,000 to 55,000 — and a larger-scale mining scenario built around the combined Côté-and-Gosselin model. (TSX: IMG, NYSE: IAG). News Release
Brixton Metals has returned more ultra-high-grade silver from its wholly owned Langis project in the historic Cobalt mining camp of Ontario, roughly 500 kilometres north of Toronto. The latest hole cut 2.3 metres of 1,811 grams per tonne silver within a broader 27.7 metres of 166.45 grams per tonne. Langis is a past-producing mine where silver occurs predominantly as native silver tied to cobalt- and nickel-rich minerals, and Brixton is working through a 60,000-metre 2026 campaign, the largest in the project's history, with about 14,760 metres across 72 holes drilled so far. For context, the Cobalt camp has historically produced more than 445 million ounces of silver (TSX-V: BBB, OTCQX: BBBXF). News Release
Radisson Mining has extended high-grade gold into the previously undrilled gap between Trend #1 and Trend #2 at its 100%-owned O'Brien Gold Project in the Abitibi region of Québec. The company had argued that gap reflected drill coverage rather than missing mineralization — and the new holes back that up. The standout, hole OB-26-387W2, returned 7.57 grams per tonne gold over 9.7 metres, including a 52.75 grams over 1.1 metre interval. (TSX-V: RDS, OTCQX: RMRDF). News Release
American Pacific Mining has commenced its largest-ever drill program at the Madison copper-gold project in Montana — a 15,000-metre combined reverse-circulation and diamond-core campaign. The program is designed to extend the shallower high-grade copper and gold mineralization from previous campaigns and to test deeper porphyry targets beneath the known system (CSE: USGD, OTC: USGDF). News Release
Yukon Metals has broken ground on a 5,000-metre drill program across its AZ and Birch copper-gold properties in the Yukon — roughly 2,000 metres at AZ and 3,000 metres at Birch, with first core pulled at AZ on May 28th. The fully funded programs target porphyry and skarn copper-gold systems through drilling, geophysics, surface sampling and alteration mapping, and CEO Jim Coates pointed to the recent Sumo property addition as broadening an already district-scale copper-gold-molybdenum picture. The company has committed to using Yukon and First Nations contractors for the majority of the work. (CSE: YMC, OTCQB: YMMCF). News Release
And finally, Aldebaran Resources has executed an arrangement agreement to spin out Centauri Minerals, the vehicle holding its Argentine exploration portfolio. Centauri carries six greenfield projects across Salta, Jujuy and Catamarca provinces — led by the Rio Grande gold-copper project — while Aldebaran keeps its flagship Altar copper-gold project in San Juan. Under the plan of arrangement, Aldebaran will distribute roughly 18.5 million Centauri shares to its shareholders on a one-for-ten basis — one Centauri share for every ten Aldebaran shares held — with no change to anyone's proportionate ownership in Aldebaran itself. It's the formal step toward Centauri's planned go-public transaction in the first half of the year (TSX-V: ALDE, OTCQX: ADBRF). News Release
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That's it for today everyone. Have a great day. Stay safe.
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