Polymetals Resources Ltd
Polymetals Resources Ltd owns and operates the Endeavor Mine, a historic underground silver-zinc-lead operation in the Cobar mining district of NSW, restarted roughly a year before mid-2026 and now generating strong cash flow. The June 2026 quarter delivered record results: revenue up 65% to A$45.8 million, operating cash flow of A$10.4 million, production of 396,485 oz silver, 490 oz gold, 3,268 t zinc and 2,061 t lead, debt reduced 29% to A$10.7 million, and cash growing to A$29.1 million. On 28 Jul 2026 the company completed the final piece of its original Endeavor acquisition by exchanging its ~A$28 million rehabilitation bond for a new bond arranged through Macquarie Bank, giving the business greater balance-sheet flexibility. Executive Chairman David Sproule leads the company; John Haley is Company Secretary & CFO.
Notable vs. Peers
- Jurisdiction risk score of 9/10 is meaningfully safer than the peer average of 6.8/10.
- Trading within 3% of its 52-week low — weak recent price momentum.
Lifecycle Milestones
Construction Milestones
5 of 5 reached- Reached — date not disclosed · Source
- Sep 2024 · Source
- Reached — date not disclosed · Source
- Reached — date not disclosed · Source
- Jun 2025 · Source
Milestones are recorded only from a company's own dated disclosure. A milestone with no date shown is one we can confirm was reached but for which no date was disclosed — we don't estimate one. "Not yet reached" means exactly that, not that a date is missing. An "Expected" line likewise only ever reflects the company's own guidance (e.g. a study or permit decision targeted for a stated quarter) — most not-yet-reached milestones have none, and that absence means no such guidance has been disclosed, not that one is overdue.
Jurisdiction (40%, counts 50% here)9/10
New South Wales: Fraser PPI 2025 is 73.26 of 100 (rank 37 of 68), which maps to 9 on this site's scale. Cobar, New South Wales -- Tier-1 Australian mining jurisdiction.
Infrastructure (40%, counts 50% here)10/10
A confirmed mill, confirmed road access, confirmed grid power, and a confirmed tailings facility at Endeavor Silver-Zinc-Lead Mine.
Nearby producing mine (20%)Not counted: would not raise the score
CSA (Cobar) (Harmony Gold Mining Company Limited) is 31 km away and would score 9.3/10 on its own, but that is below what this company's other researched inputs already give it. A nearby producing mine can only raise this score, never lower it, so it isn't counted here.
Acquisition Susceptibility
A relative ranking of how closely this company matches the profile of juniors that have actually been acquired — not a probability, and not a reason to buy. Acquisitions are rare: only a few dozen significant deals happen a year across a universe of thousands of juniors, so even a high score here describes a long shot. The strongest signal in the research, a producer that already owns part of the company, is scored from its disclosed strategic shareholders. A producer that is a joint-venture or earn-in partner on the project, rather than a shareholder, isn't captured yet.
How this score is built
- Disclosed pending dealSub-score: Not scored
No pending acquisition or merger disclosed (checked)
Not scored: having no deal in flight isn't held against a company.
Weight 26.25% - Producer's strategic stakeSub-score: Not scored
No producer holds a disclosed stake on file (holder register researched) See holders
Not scored: most juniors that do get bought had no prior toehold, so a missing stake says little either way.
Weight 25% - Distance to a producing mineSub-score:7/10
Nearest producing mine: CSA (Cobar) (Harmony Gold Mining Company Limited), 31 km
10 next to a producing mine, 8 at 20 km, 5 at 50 km, 0 beyond 200 km.
Weight 22.5% · 46% here - Lifecycle stageSub-score:5.5/10
Stage: Production
Feasibility and permitting score 10, where deals cluster, and production 5.5; earlier stages score less, down to 1 at grassroots.
Weight 15% · 31% here - JurisdictionSub-score:9/10
Australia: jurisdiction score 9/10
Our jurisdiction score, used as is: higher means lower political and permitting risk.
Weight 6.75% · 14% here - CommoditySub-score:5/10
Primary commodity: Silver
Gold 10, copper 8, silver 5, nickel and uranium 4, others 2: most majors' deals are for gold.
Weight 4.5% · 9% here
Weight is each input's share of the full score. “Here” is its share of this company's score: inputs that aren't scored are left out and the rest re-weighted, never counted as zero.
Your Rankings
Management Team
Executive Chairman of Polymetals Resources Ltd, leading the rebuild and ramp-up of the Endeavor silver-zinc-lead mine in Cobar, NSW.
Company Secretary and CFO of Polymetals Resources Ltd.
Insiders, Investors & Smart Money
Notable shareholders and insiders whose involvement is worth knowing about, plus what we're seeing from institutional/large-investor activity.
Jupiter Fund Management Plc holds the largest disclosed stake in Polymetals Resources at 12.77%, per an ASX substantial-holder notice reported 14 July 2025 (up from 8.33% in March 2025). FIL Limited (Fidelity International), a large global generalist asset manager, has separately been steadily increasing its own stake through a sustained buying campaign, reaching 8.31% as of a 22 July 2026 substantial-holder notice (up from 7.27%). Company insiders, led by CEO David Sproule, have also reportedly been buying recently.
No notable insiders tracked for this miner yet.
Reports, Presentations & Documents
Polymetals Resources owns and operates the Endeavor underground silver-zinc-lead mine in the Cobar district of New South Wales, which had been idle since 2019 and which the company restarted in June 2025 after an eight-month refurbishment. The June 2026 quarter produced 396,485 oz of silver, 490 oz of gold, 3,268 t of zinc and 2,061 t of lead. The August 2024 enhanced mine plan shows a pre-tax NPV8% of US$277.4M (AUD 414M) and a 345% pre-tax IRR at US$28/oz silver over a 10-year mine life, from reserves of 5.6 Mt at 4.04% Zn, 1.79% Pb and 78 g/t Ag. A new resource estimate for the high-grade Upper Main Lode is in progress and may extend the mine plan.