- Mineral exploration investment — the capital flowing into the search for new deposits.
- Mine permitting & development times — how long it takes to turn a discovery into a producing mine.
- Critical mineral refining capacity — the refining and processing chokepoint between ore and finished material.
- Energy capital investment — capital spending across the energy and resource sector.
- Investment screening regime — how Canada vets foreign control of strategic assets.
Before you can ask whether Canada develops its resources fast enough (the question the mine-permitting metric takes up), it helps to know what is actually in the ground. The answer is: a great deal. Across the critical minerals that matter for batteries, magnets, nuclear power, and steel, Canada is one of a small handful of countries with a genuinely broad endowment. The harder question is conversion. A reserve is only national wealth if it becomes production. On that test Canada divides sharply in two. It mines its legacy minerals (potash, uranium, nickel) at or above its share of the world's reserves. It barely touches the transition minerals (lithium, graphite, cobalt, and rare earths), where it also holds ground but lets others do the digging.
The chart below pairs Canada's share of world reserves with its share of world production for eight critical minerals. Where the red production bar matches or exceeds the muted reserve bar, Canada is converting its endowment, turning rock into output and revenue. Where production falls short, reserves are sitting undeveloped. Canada produces above its reserve share in the established minerals and below it in the transition ones.
| Share of world reserves | Share of world production | |
|---|---|---|
| Potash | 18.6 | 30.6 |
| Uranium* | 9.8 | 24 |
| Lithium | 4.3 | 1.9 |
| Cobalt | 1.8 | 1.1 |
| Graphite | 1.9 | 0.44 |
| Nickel | 1.6 | 3.6 |
| Copper | 0.71 | 2.2 |
| Rare earths | 1.0 | 0 |
Divide the red bar by the muted one and the split becomes a single number: how many times its reserve share Canada actually produces. At 1.0×, a country mines exactly its share of the world's reserves. In the four established minerals Canada punches well above its geological weight, producing between 1.6 and 3.1 times its reserve share. In all four transition minerals it produces less than its share, and in rare earths nothing at all.
Rare earths are the elements behind permanent magnets in electric motors, wind turbines, and guided weapons. Canada's identified rare-earth resources exceed 14 million tonnes on the USGS basis (NRCan's own estimate is slightly higher still, at over 15 million tonnes of rare-earth oxide), more than four times the United States' 3.6 million and the largest in North America. In 2025 the United States mined 51,000 tonnes and China 270,000. Canada mined nothing. It mined nothing in 2024 either.
Canada holds the world's largest potash reserves (~19%, a share that fell from 23% when USGS revised world reserves upward in 2026, not because Canada lost ground), the third-largest uranium resources (~10%), and meaningful reserves of nickel, lithium, graphite, cobalt, and rare earths. On raw geological endowment, Canada is a top-tier critical-minerals nation. The constraint lies downstream of the geology.
Potash (~31% of world output, #1) and uranium (~24%, #2) are mined well above Canada's reserve share; nickel (3.6% of production on 1.6% of reserves) and copper (2.2% on 0.71%) likewise over-convert. These are 20th-century strengths (Saskatchewan potash, Athabasca uranium, Sudbury nickel), mature and fully built out.
Lithium (4.3% of world reserves but ~1.9% of production), graphite (1.9% → 0.44%), and cobalt (1.8% → 1.1%) all produce well below their reserve share. The battery supply chain Canada says it wants to anchor is barely mined at home.
Canada's identified rare-earth resources (>14 Mt) are roughly four times the United States' (3.6 Mt) and the largest on the continent, yet it produced zero tonnes in 2024 and again in 2025, while the U.S. mined 51,000 t and China 270,000 t. For a mineral class central to defence and electrification, that is a sovereignty gap, not just an economic one.
Canada's endowment is a genuine strength and its legacy-mineral industries are world-class. The resources and the mining capability are both there. But the conversion gap falls precisely on the minerals that will define the next economy and the allied supply chains being rebuilt around them. Holding the largest rare-earth resources on the continent and mining none of them is the kind of position that looks like wealth on paper and dependence in practice.
Canada holds meaningful reserves in all eight minerals studied but is a leading producer in only three. It mined no rare earths in 2025 despite the largest resources in North America.
- Compared with
- World totals for each of eight critical minerals (Canada's share of world reserves against its share of world production), plus a country chart for rare-earth mine output.
- Where Canada sits
- Canada is the world's largest potash producer at about 31% of output and mined nothing in rare earths in 2025. It produces above its reserve share in potash, uranium, nickel, and copper, and below it in lithium, cobalt, graphite, and rare earths.
- Which way it is moving
- Flat. The page gives a single year for most minerals, so there is no trend line to read. Rare-earth output was zero in 2024 and again in 2025, and the potash reserve share fell from 23% to about 19% only because USGS revised world reserves upward.
- What the verdict follows
- Canada's position in world supply, mineral by mineral. No single country ranking covers all eight minerals and the page gives no trend, so the verdict weighs the minerals against each other. Legacy minerals such as potash lead the world, while the transition minerals the page stresses are barely mined. That split reads as Watch.
- Data basis
- USGS Mineral Commodity Summaries 2026 (reserves and 2025 mine production, published 6 February 2026) and OECD-NEA/IAEA Uranium 2024 (resources as of 1 Jan 2023, 2024 production). Page last reviewed September 2026.
Primary sources
- USGS, Mineral Commodity Summaries 2026 — country-level reserves and 2025 mine production for potash, nickel, cobalt, graphite, lithium, copper, and rare earths (individual commodity chapters).
- OECD-NEA & IAEA, Uranium 2024: Resources, Production and Demand ("Red Book"), via the World Nuclear Association — uranium identified recoverable resources to $130/kgU (1 Jan 2023) and 2024 mine production by country.
Methodology notes
- Definitions. "Reserves" are the USGS economically-extractable estimate at each commodity's stated vintage. Shares are Canada ÷ world total from the same table. A mineral is described as converted where Canada's production share meets or exceeds its reserve share, and under-developed where production share falls below it.
- Comparability caveats. Uranium uses OECD-NEA "identified recoverable resources" (reasonably assured + inferred, to $130/kgU) because the USGS publishes no uranium reserve series; this is a broader category than the reserves basis used for the other seven minerals, so the uranium bars are directional, not strictly like-for-like. For rare earths, the share chart uses the USGS reserve figure (830,000 t), while the narrative ">14 Mt" is the broader measured-and-indicated resource figure from the same chapter. The two are different categories and are labelled as such. USGS marks its 2025 mine production figures as estimates ("2025e" in the Mineral Commodity Summaries 2026 tables), and revised several countries' 2024 production in the same edition; lithium world production excludes the withheld U.S. figure.
- Companion workbook. The editable reserve, production, and share tables live in Building_Critical-Mineral-Reserves_Data.xlsx. Only series the workbook contains are charted here.
