Hemlo Mining Drills 89.9 g/t Gold 50 Metres From a Working Stope, and Changes Its True-Width Estimate

The South-Rim zone at the Hemlo gold mine in northwestern Ontario is not a discovery in a new district. It sits between 50 and 150 metres from workings that are being mined today, and that single geometric fact is what makes the drill result Hemlo Mining Corp. reported on September 10, 2026 worth reading closely.

The headline is a grade: 89.89 grams of gold per tonne over 3.0 metres in hole 6702608, between 175.0 and 178.0 metres downhole. Grades like that circulate quickly and mean less than they appear to on their own. The distance does the analytical work here, and a footnote several lines below the assay table does more of it than the grade does.

Fifty to 150 metres is the argument

The release states that South-Rim "lies only 50 to 150 metres from active C-Zone mining and existing underground infrastructure." The same range appeared in the company's May 14, 2026 release on the zone, so it has been consistent across four months.

For a reader who has not costed a mine, here is why that sentence carries more weight than the grade. An ounce discovered in a greenfield setting has to fund its own access: a road, a portal or shaft, ventilation, dewatering, power, a mill, a tailings facility and a permitting process, and the capital comes before the first ounce is sold. An ounce found 100 metres from a drift that already exists inherits all of it. The incremental cost is a cross-cut and a stope, not a mine.

That is the honest content of the phrase "near-mine growth" that Hemlo's chief executive Jason Kosec used in the release, describing South-Rim as "rapidly emerging as one of the most exciting near-mine growth opportunities at Hemlo." It is a company statement and is attributed as one. The underlying economics of proximity, though, are not promotional; they are why operating mines drill around themselves before they drill anywhere else, and why Hemlo has budgeted 130,000 metres for 2026 across seven underground and three surface rigs, of which roughly 75,000 metres were complete at the date of the release.

The conversion factor changed, and the release does not say why

Every interval in the September 10 release is a downhole length, not a true width. The company footnotes it: "True thickness is estimated to vary between 65% and 90% of downhole length."

The May 14, 2026 release on the same zone, reporting the initial South-Rim results, used a different figure for the same conversion: true thickness estimated at 30 to 70 per cent of downhole length.

The two statements are not compatible, and nothing in the September release explains the revision. It is entirely possible that four months of additional drilling produced a better understanding of the zone's orientation relative to the holes, which is the ordinary reason such a factor tightens. That would be a legitimate revision. It has simply not been disclosed as one.

The arithmetic is small and it changes the picture. The two headline intercepts, converted on each footing:

The lower bound on the flagship intercept roughly doubles, on a factor the company revised rather than on anything the drill found. The question is simple and answerable: what changed?

To Hemlo's credit, the sampling discipline behind the numbers is disclosed and conventional. Assays were run by ALS Laboratories in Thunder Bay, fire assay with an atomic absorption finish, anything above 5 g/t re-assayed gravimetrically, with certified reference materials, blanks and duplicates inserted. The qualified person is Raphael Dutaut, the company's vice-president of exploration.

Six rungs from an intercept to an ounce, and where South-Rim stands

Gold that has been drilled and gold that can be counted are separated by a sequence of steps, each of which costs money and time. Numbering them is the fastest way to see what a release like this one does and does not deliver.

1. A single intercept in a single hole. Evidence that mineralisation exists at one point in space. Hole 6702608 clears this.
2. Multiple intercepts defining continuity. Evidence that the mineralisation joins up between holes along strike and down dip. The release reports 19 intercepts above roughly a 2 g/t reporting threshold and describes about 500 metres of high-grade mineralisation demonstrated within an interpreted 1.5 kilometre zone. South-Rim clears this too, and this is the genuinely material progress in the release.
3. A classified inferred resource. A qualified person's estimate of tonnes and grade, with reasonable prospects for eventual economic extraction. South-Rim does not clear this. The release states that "2026 South-Rim drilling results were not included in the June 2026 Updated Mineral Resource Estimate," and the June 25, 2026 resource release says the same from the other direction.
4. Indicated classification. Tighter drill spacing supporting mine planning. Hemlo has added conversion drilling to, in its words, "potentially advance portions of the zone toward Indicated classification," with a comprehensive resource and reserve update targeted for the second half of 2027.
5. A mineral reserve. Indicated or measured material with modifying factors and economics applied. Nothing at South-Rim is at this rung, and Hemlo's reserve statement as a whole is still the one it inherited, effective December 31, 2024, at 41,249 thousand tonnes grading 1.75 g/t gold for 2,321 thousand ounces on a 100 per cent basis.
6. Production. Ounces through the mill.

South-Rim is at rung two, with rung four scheduled. That is a real position and it is not an ounce. No tonnage, no grade estimate, no capital number and no economic study has been attached to the zone by anyone, and the phrase "low-capital resource growth" that appears in management commentary is not supported by a study of any kind.

Who listed Hemlo in Germany, and who did not

For a reader in Frankfurt the mechanics of the listing matter as much as the geology, so they are worth stating exactly.

Hemlo Mining Corp. trades in Germany under the symbol MU4, WKN A41UK3, on ISIN CA42366G1046, the same Canadian ISIN as the Toronto line, quoted in euros. Deutsche Börse's own instrument page carries the security as "HEMLO MINING CORP. O.N." The quotation sits in the Frankfurt open market rather than on Xetra, with parallel quotes on Tradegate and other regional venues.

Two consequences follow. First, the company's own investor materials do not mention the German line at all: the corporate presentation lists only TSX: HMMC and OTCQX: HMMCF, and the OTCQX quotation began April 23, 2026 with DTC eligibility announced July 15, 2026. A German quotation obtained this way is a market-maker arrangement, not a company-sponsored cross-listing, and it carries no additional disclosure obligation in Germany. Second, a euro holder of MU4 is taking Canadian dollar and gold price exposure filtered through a euro exchange rate, on a line whose depth is set by German market makers rather than by Toronto volume.

Two dates Hemlo owes the market, and one that arrives on its own

On February 23, 2026 the company said it "expects to release 2026 production and cost guidance in Q3." The third quarter ends in three weeks and no guidance release has appeared. The second quarter results of August 11, 2026 contained none either. The figure circulating is a 131 thousand ounce attributable estimate from the corporate presentation, which is a presentation number, not issued guidance. Actual 2025 payable production was 143,458 ounces.

The reserve statement is the second date. It is effective December 31, 2024, priced at US$1,700 per ounce gold, and predates both the June 2026 resource update and the entire 2026 drill programme. Resources were updated on June 25, 2026 to 96,866 thousand tonnes at 1.55 g/t for 4,841 thousand ounces measured and indicated, plus 12,128 thousand tonnes at 2.22 g/t for 866 thousand ounces inferred, on a 100 per cent basis.

The date that arrives without being asked for is January 2027. Under the November 26, 2025 acquisition of the Hemlo mine from Barrick, Hemlo Mining owes contingent payments for five years from January 2027 on incremental revenue above gold price thresholds: 20.0 per cent above US$3,300 per ounce, 22.5 per cent above US$3,500 and 25 per cent above US$3,700. The company realised US$4,467 per ounce in the second quarter of 2026. On current prices the top tier is live from the first month it applies, and it is a cash cost that does not appear in the 2026 numbers at all.

Against that, the balance sheet has room. At June 30, 2026 Hemlo reported cash of US$130.2 million, a US$150 million term facility drawn, its revolver undrawn after repayment in March 2026, and net debt of US$19.8 million. Second quarter revenue was US$142.5 million with net income of US$31.0 million, on 25,188 attributable ounces at an all-in sustaining cost of US$2,561 per ounce sold. No equity financing, no at-the-market programme and no bought deal has been disclosed in 2026.

The reading, in Priya Sandhu's terms

This is a good result reported carefully, in a place where good results are worth more than usual, by a company that is behind on two of its own disclosure commitments.

The proximity is real and the continuity claim at 500 metres within a 1.5 kilometre interpreted zone is the part of the release that will still be true in a year. The revised true-thickness range is the part that needs a sentence from the company, because a conversion factor that moves from 30 to 70 per cent to 65 to 90 per cent between two releases on the same zone changes every width in the file, and an outside reader cannot tell whether it reflects new survey data or a new interpretation.

What would move the reading is dated and specific. The 2026 guidance release, whenever it comes, is the first item, because it tells a holder what the mine is expected to do rather than what the drill did. A South-Rim tonnage and grade in the second half of 2027 update is the second and by far the largest. An updated reserve statement priced anywhere near current gold, replacing a December 2024 statement built at US$1,700 per ounce, is the third. A modelled 2027 cost for the Barrick contingent payment at spot gold is the fourth and the one most likely to surprise. And a company note explaining the true-width revision would cost nothing and settle the only genuine ambiguity in the September release.

Hemlo has 130,000 metres of drilling budgeted for 2026 and has completed roughly 75,000 of them. South-Rim will not appear in a classified resource until the second half of 2027 at the earliest, on the company's own schedule. Everything between now and then is drilling, and drilling is not classification.

Transparency note. This is an independent due-diligence analysis and editorial opinion piece produced by The Maple Markets editorial desk. It is not sponsored, promoted or commissioned, and no compensation of any kind has been received from Hemlo Mining Corp. (TSX: HMMC), Barrick Mining Corporation, or any party acting on their behalf. The analysis is based on public disclosure available as of the publish date; every figure is attributed to its primary source. The Maple Markets and its authors may hold positions in securities mentioned; nothing here is a recommendation to buy, sell or hold any security, and readers should not treat it as investment advice. Past disclosure does not guarantee future results. Policies: Editorial Standards · Financial Disclaimer.