Mining and natural-resource companies reported a mix of operational disruptions, drilling results, permitting progress and critical-minerals supply-chain developments on Aug. 18–19, 2026. The items below are company announcements and distributed releases; exploration results are preliminary unless stated otherwise.
Lundin Mining revises Caserones copper outlook after Chile storm
Lundin Mining said a second severe winter storm in Chile’s Atacama region affected its Caserones and Candelaria operations. The company said Caserones experienced a second power outage on Aug. 14 after heavy snowfall and high winds re-damaged a transmission tower. Lundin revised Caserones’ 2026 copper-production guidance to 120,000–130,000 tonnes from 130,000–140,000 tonnes and raised its Caserones cash-cost guidance to $2.15–$2.35 per pound from $2.05–$2.25 per pound. Candelaria was still expected to meet its full-year production guidance, according to the company’s Aug. 19 update.
NexGold reports additional Goldboro infill results
NexGold Mining reported results from 3,591 metres across 85 reverse-circulation holes in the west-pit area of its Goldboro Gold Project in Nova Scotia. Highlights included 5.26 grams per tonne gold over 7.0 metres, including 31.29 g/t over 1.0 metre, and 7.08 g/t gold over 5.0 metres. The results are part of the company’s 40,000-metre detailed RC infill program. Read the distributed release for the reported intervals and tables.
Energy Fuels says terbium oxide qualified for Japanese magnet use
Energy Fuels said its terbium oxide produced at the White Mesa Mill in Utah met the requirements of a Japan-based permanent-magnet manufacturer and was authorized for use in commercial products. The announcement adds a qualification milestone to the company’s work on separated heavy rare-earth oxides. Details are in the Aug. 19 distributed release; the qualification does not itself establish a binding purchase agreement or commercial sales volume.
Royal Road extends shallow zinc-silver system in Saudi Arabia
Royal Road Minerals reported additional reverse-circulation results from the Hanash North prospect at its Jabal Sahabiyah project in Saudi Arabia. The company said shallow zinc-silver-rich polymetallic sulphide mineralization has been intersected over an interpreted strike length exceeding 350 metres, with widths up to 20 metres. New results included 9 metres at 4.01% zinc, 34.3 g/t silver, 0.4 g/t gold and 0.3% copper in HNRC009, and 12 metres at 3.13% zinc, 43.4 g/t silver, 0.2% gold and 0.2% copper in HNRC010. The company release says the reported intercepts are not true widths and that its recovered-gross-metal-value measure is an exploration tool, not an estimate of net smelter return or economic value.
Metalsource expands Silver Hill polymetallic corridor
Metalsource Mining reported results from the Silver Hill Project in North Carolina. Hole SH26-20 returned 9.57 metres grading 364 grams per tonne silver equivalent, including 2.26 metres at 913 g/t AgEq. Hole SH26-21 returned 15.30 metres at 207 g/t AgEq. The company said the step-out holes extended mineralization to approximately 335 metres below surface, with the system remaining open down dip and along strike. The Aug. 18 release cautions that the results are preliminary, reported widths are core lengths, and additional drilling is needed before a mineral resource can be defined.
Astra reports high-grade intervals at La Manchuria
Astra Exploration reported the first assays from eight of 16 holes in its Phase III program at the La Manchuria Gold and Silver Project in Argentina; assays for the other eight holes were pending. Highlighted results included 2 metres at 80.54 g/t gold and 44.5 g/t silver in LMD-148, plus 2 metres at 26.23 g/t gold and 6.7 g/t silver in LMD-143. The company’s release states that estimated true widths are approximately 85% of reported widths and that its gold-equivalent calculations use stated metal-price and recovery assumptions.
PPX receives environmental approval for Peru drill program
PPX Mining said Peru’s Ministry of Energy and Mines approved the environmental technical sheet for a planned 10,315-metre, 58-hole diamond-drilling program at the Portachuelos area of the Igor Project. PPX said the program has a maximum 20-month completion period, is expected to use at least two rigs and could begin by the end of September 2026 after the company obtains authorization to commence activities. The Aug. 18 announcement also cited historical hole CA-18-94 results, including 6.0 metres at 5.77 g/t gold, 443.8 g/t silver and 0.67% copper; those are historical results, not new drilling.
Ramaco signs non-binding Brook Mine supply MOU
Ramaco Resources entered into a non-binding memorandum of understanding with Indium Corporation covering potential supply of gallium and germanium from the exploration-stage Brook Mine project in Wyoming. The Aug. 18 release says any future supply or offtake arrangement remains subject to due diligence, definitive agreements, successful project development and other conditions. The MOU therefore represents a proposed commercial relationship, not a completed sale or binding offtake contract.
These announcements illustrate the range of catalysts and risks affecting mining and natural-resource issuers, from operational weather disruptions and permitting steps to exploration results and early-stage critical-minerals agreements. Investors should review the original releases, technical disclosures and risk factors before drawing conclusions.
This article is for informational purposes only and is not financial advice.
