Griffin Mining Limited (AIM: GFM) holds an 88.8% interest (via its wholly-owned Hong Kong subsidiary China Zinc Limited) in Hebei Hua Ao Mining Industry Company Limited, operator of the Caijiaying zinc-gold-silver-lead mine in Hebei Province, China, at the northern edge of the North China Craton within the Yanshan Metallogenic Belt. The mine has been in continuous commercial production since 2005 (commissioned on time and on budget). Griffin began production from a new Zone II area in April 2026 following completion of the first production blast, providing access to over 36 million tonnes of ore and securing the mine's operating life past 2050 at minimum rates of 1.5 Mtpa. A new mining licence covering the combined Zone II and Zone III areas was granted in December 2020, running through 2054.
Notable vs. Peers
- Jurisdiction risk score of 4/10 is meaningfully riskier than the peer average of 7.9/10.
- Financials score of 7/10 is stronger than the peer average of 4/10.
Lifecycle Milestones
Construction Milestones
5 of 5 reached- Reached — date not disclosed · Source
- Feb 2004 · Source
- Apr 2004 · Source
- Jan 2005 · Source
- Jun 2005 · 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%)4/10
The Caijiaying mine is in Hebei Province, China. It has a two-decade production history and a mining licence valid to 2054, but carries the elevated regulatory, foreign-ownership and capital-repatriation risk of Chinese jurisdictions.
Infrastructure (40%)10/10
A confirmed mill, confirmed road access, confirmed grid power, and a confirmed tailings facility at Caijiaying Zinc-Gold Mine, Hebei Province, China.
Nearby producing mine (20%)Not yet researched
No project coordinates on file yet, so distance to a producing mine can't be measured.
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: Not yet researched
Distance not yet researched: no project coordinates on file
Distance can't be measured without coordinates, so excluded rather than counted as far.
Weight 22.5% - 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% · 57% here - JurisdictionSub-score:4/10
China: jurisdiction score 4/10
Our jurisdiction score, used as is: higher means lower political and permitting risk.
Weight 6.75% · 26% here - CommoditySub-score:2/10
Primary commodity: Zinc
Gold 10, copper 8, silver 5, nickel and uranium 4, others 2: most majors' deals are for gold.
Weight 4.5% · 17% 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
Chairman of Griffin Mining Limited. The company has no separate Chief Executive Officer -- per Griffin's own corporate-governance disclosure, the Chairman carries the operational responsibilities of a CEO despite not being a full-time employee (services provided via Keynes Capital).
Finance Director and Company Secretary of Griffin Mining Limited.
Senior Independent Director of Griffin Mining Limited; member of the Audit Committee.
Independent Non-Executive Director of Griffin Mining Limited; Chair of the Audit Committee.
Independent Non-Executive Director of Griffin Mining Limited; Chair of the Remuneration Committee.
Non-Executive Director of Griffin Mining Limited; a major shareholder, and consequently not classified as independent; member of the Audit Committee.
Insiders, Investors & Smart Money
Notable shareholders and insiders whose involvement is worth knowing about, plus what we're seeing from institutional/large-investor activity.
No smart-money tracking (institutional/large-investor activity) for this miner yet — this is a planned feature, not live data.
No notable insiders tracked for this miner yet.
Reports, Presentations & Documents
Griffin Mining holds 88.8% of Hebei Hua Ao Mining, which operates the Caijiaying zinc-gold-silver-lead mine in Hebei Province, China, in continuous commercial production since 2005. The Caijiaying measured and indicated resource (effective 31 December 2025) is 48.8 Mt at 3.5% zinc, containing 1,384,000 t of zinc, 203,000 t of lead, 36.3 Moz of silver and 0.679 Moz of gold, plus 960,000 t of zinc inferred; no ore reserve figures are disclosed. Production from the new Zone II area began in April 2026, giving access to more than 36 Mt of ore and supporting operations beyond 2050 at a minimum rate of 1.5 Mtpa, under a mining licence for Zones II and III that was granted in December 2020 and runs to 2054.