Bunker Hill Hits 15ft Sulfide in First Page Drill Hole

Bunker Hill Mining Corp. (TSX: BNKR | OTCQB: BHLL) said on 5 October 2026 that its first surface drill hole at the recently acquired Page property, three miles from its Kellogg processing facility, intersected 15 feet of continuous Galena-Siderite and Sphalerite mineralization roughly 200 feet below surface. The company has launched a 3,200-foot, 10-hole program expected to take six weeks, and reiterated its target of reaching commercial production by the end of 2026.

Context — Why the Page Drill Hit Matters Now

The Page result lands days after Bunker Hill closed a 14,300-foot, 39-hole underground campaign at the Cate-8 Vein. That program is now in the assay and collation phase, feeding an updated resource statement the company expects to publish by the end of Q4 2026.

The sequence matters. Bunker Hill is not drilling greenfield ground. Page sits the same distance from the Kellogg plant as the Russell Portal in Wardner, and it is accessed by paved and forest roads — logistics the company already runs daily for ore haulage.

What changed to trigger drilling now is the ramp-up itself. The company said it fully commissioned its paste plant in September and on-boarded a fourth mining crew, which allowed continuous 1,800 tonnes per day underground operations to begin. Ore is now flowing from two active stopes on the 5 and 8-2 levels at targeted head grade, replacing the low-grade stockpiles used during early plant commissioning.

That operational shift gives the exploration team a working plant, a permitted road network and a defined haulage route — the infrastructure a new near-surface target needs to move from visual hit to mineable tonnes.

Bunker Hill frames the broader effort as re-interpreting a century of historical mining and exploration data with modern methods, including AI tools. The company cautions that this historical data has not been fully verified by a qualified person and that exploration may not delineate additional mineral resources.

The macro backdrop is not cited in the report. No metal price, index level or yield is given, so no comparison to prevailing silver, zinc or lead markets can be drawn from the disclosure.

Data — What the Numbers Show

The headline figure is 15 feet of continuous sulfide mineralization at approximately 200 feet from surface in hole one of ten. The company describes this as a visual assessment only, not an assay.

Bunker Hill states plainly that visual estimates are not a substitute for laboratory assays and should not be relied upon as an indication of grade or extent. The assays will be completed as the campaign progresses.

The program totals 3,200 feet across 10 shallow holes, expected to finish in six weeks. That compares with the completed Cate-8 campaign of 14,300 feet across 39 holes — Page is roughly a quarter of the footage in a third of the holes, reflecting its shallow, near-surface design.

On the production side, Bunker Hill revised its definition of commercial production. The prior test was throughput of at least 65% of 1,800 tpd nameplate capacity alone. The new test requires that throughput threshold plus zinc, lead and silver recovery of at least 70%, sustained for 60 days.

The company also reported 553 consecutive days without a reportable incident, and said operating performance including costs remains in line with pre-production estimates.

Metric	Prior definition	Revised definition
Throughput	65% of 1,800 tpd	65% of 1,800 tpd
Recovery	Not required	Zinc/lead/silver ≥70%
Duration	Not specified	60 days

No peer or sector comparison is available from the report.

Analysis — What It Means for Silver Valley Exposure

The revised commercial production test is the more consequential disclosure. Adding a 70% recovery hurdle over 60 days converts a throughput milestone into a metallurgical performance milestone. Throughput can be reached by feeding the mill; recovery depends on ore body characteristics, reagent regimes and circuit tuning.

For holders of BNKR on the TSX or BHLL on the OTCQB, the practical effect is that the end-2026 commercial production date now carries a second, harder condition. The company has not disclosed what recovery levels the plant is currently achieving, so the distance to the 70% threshold is unknown.

The 2027 planning work points to a larger ambition. Bunker Hill said studies are ongoing into a second 6,000-foot portal just over a mile from the processing plant, with direct access to the 10 Level, to relieve the current single access and single egress constraint on haulage. It is also studying plant modifications to lift capacity to 2,500 tpd from 1,800 tpd.

The company recently acquired 60 acres adjacent to and uphill from the processing facility for potential use as a dry-stack tailings site. Tailings capacity is often the binding constraint on mill expansion, so the land purchase is consistent with the 2,500 tpd study rather than separate from it.

The counter-argument is timing. Cate-8 resources are only expected to enter the 2027-2030 mine plan subject to the updated resource statement and further technical and economic evaluation. Page is earlier still — a visual hit awaiting assay. Neither has been converted into reserves.

The report also flags that Bunker Hill's production decision is not based on a feasibility study of mineral reserves demonstrating economic and technical viability. Positioning is therefore likely concentrated among investors underwriting the restart timeline rather than reserve-backed valuation.

Outlook — What to Watch Next

Three dated catalysts sit in the company's own calendar, all clustered at the end of Q4 2026. First, the updated resource statement incorporating Cate-8 data. Second, 2027 production guidance. Third, the 2027 mine plan, which is where any Cate-8 resources would be incorporated.

Before those, the Page assay results are the nearer event. The company said the 3,200-foot program should take six weeks from its October start, which places completion in mid-November 2026. Assay timing was not disclosed.

The commercial production test itself is the operational gate. Bunker Hill needs 60 consecutive days at 65% of 1,800 tpd throughput and 70% zinc, lead and silver recovery to declare it. From an October start, that window runs into the end of the year, leaving little slack against the stated target.

No price levels, support or resistance are cited in the report or available to frame the equity.

Frequently Asked Questions

What does 15 feet of sulfide mineralization actually mean for Bunker Hill?

It means the first hole of a 10-hole program encountered Galena-Siderite and Sphalerite mineralization over a 15-foot interval roughly 200 feet below surface. It does not mean the company has 15 feet of ore. Bunker Hill explicitly stated that visual estimates are not a substitute for laboratory assays and should not be relied upon as an indication of grade or extent. Only assay results, to be completed as the campaign progresses, can establish grade.

Why did Bunker Hill change its commercial production definition?

The company said it revised the definition to stretch the team's performance and mirror commissioning best practice. Previously, commercial production required only throughput of at least 65% of 1,800 tpd nameplate capacity. The new test adds zinc, lead and silver recovery of at least 70%, sustained for 60 days. This raises the bar from a volumetric milestone to a metallurgical one, meaning the plant must demonstrate it can actually recover metal, not just move tonnes.