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CRITICAL MINERAL COMPANIES · RESEARCH

Ontario critical-mineral companies & public issuers

Explore 62 listed mineral companies headquartered in Ontario, Canada, their sourced listing details and domestic or overseas mineral interests.

Canada

Almonte

1listed companies ↗Canada

Bracebridge

1listed companies ↗Canada

Burlington

1listed companies ↗Canada

London

1listed companies ↗Canada

Toronto

18listed companies ↗

GLOBAL PROJECT EXPOSURE

Local headquarters. International mineral interests.

Explore headquarters ↗
Fiji: 0 companies with reviewed asset exposureUnited Republic of Tanzania: 0 companies with reviewed asset exposureWestern Sahara: 0 companies with reviewed asset exposureCanada: 44 companies with reviewed asset exposureUnited States of America: 15 companies with reviewed asset exposureKazakhstan: 0 companies with reviewed asset exposureUzbekistan: 0 companies with reviewed asset exposurePapua New Guinea: 0 companies with reviewed asset exposureIndonesia: 0 companies with reviewed asset exposureArgentina: 0 companies with reviewed asset exposureChile: 1 companies with reviewed asset exposureDemocratic Republic of the Congo: 0 companies with reviewed asset exposureSomalia: 0 companies with reviewed asset exposureKenya: 0 companies with reviewed asset exposureSudan: 0 companies with reviewed asset exposureChad: 0 companies with reviewed asset exposureHaiti: 0 companies with reviewed asset exposureDominican Republic: 0 companies with reviewed asset exposureRussia: 0 companies with reviewed asset exposureThe Bahamas: 0 companies with reviewed asset exposureFalkland Islands: 0 companies with reviewed asset exposureNorway: 0 companies with reviewed asset exposureGreenland: 0 companies with reviewed asset exposureFrench Southern and Antarctic Lands: 0 companies with reviewed asset exposureEast Timor: 0 companies with reviewed asset exposureSouth Africa: 0 companies with reviewed asset exposureLesotho: 0 companies with reviewed asset exposureMexico: 0 companies with reviewed asset exposureUruguay: 0 companies with reviewed asset exposureBrazil: 2 companies with reviewed asset exposureBolivia: 0 companies with reviewed asset exposurePeru: 1 companies with reviewed asset exposureColombia: 0 companies with reviewed asset exposurePanama: 0 companies with reviewed asset exposureCosta Rica: 0 companies with reviewed asset exposureNicaragua: 0 companies with reviewed asset exposureHonduras: 0 companies with reviewed asset exposureEl Salvador: 0 companies with reviewed asset exposureGuatemala: 0 companies with reviewed asset exposureBelize: 0 companies with reviewed asset exposureVenezuela: 0 companies with reviewed asset exposureGuyana: 0 companies with reviewed asset exposureSuriname: 0 companies with reviewed asset exposureFrance: 0 companies with reviewed asset exposureEcuador: 0 companies with reviewed asset exposurePuerto Rico: 0 companies with reviewed asset exposureJamaica: 0 companies with reviewed asset exposureCuba: 0 companies with reviewed asset exposureZimbabwe: 0 companies with reviewed asset exposureBotswana: 0 companies with reviewed asset exposureNamibia: 1 companies with reviewed asset exposureSenegal: 0 companies with reviewed asset exposureMali: 0 companies with reviewed asset exposureMauritania: 0 companies with reviewed asset exposureBenin: 0 companies with reviewed asset exposureNiger: 0 companies with reviewed asset exposureNigeria: 0 companies with reviewed asset exposureCameroon: 0 companies with reviewed asset exposureTogo: 0 companies with reviewed asset exposureGhana: 0 companies with reviewed asset exposureIvory Coast: 0 companies with reviewed asset exposureGuinea: 0 companies with reviewed asset exposureGuinea-Bissau: 0 companies with reviewed asset exposureLiberia: 0 companies with reviewed asset exposureSierra Leone: 0 companies with reviewed asset exposureBurkina Faso: 0 companies with reviewed asset exposureCentral African Republic: 0 companies with reviewed asset exposureRepublic of the Congo: 0 companies with reviewed asset exposureGabon: 0 companies with reviewed asset exposureEquatorial Guinea: 0 companies with reviewed asset exposureZambia: 0 companies with reviewed asset exposureMalawi: 0 companies with reviewed asset exposureMozambique: 0 companies with reviewed asset exposureeSwatini: 0 companies with reviewed asset exposureAngola: 0 companies with reviewed asset exposureBurundi: 0 companies with reviewed asset exposureIsrael: 0 companies with reviewed asset exposureLebanon: 0 companies with reviewed asset exposureMadagascar: 1 companies with reviewed asset exposurePalestine: 0 companies with reviewed asset exposureGambia: 0 companies with reviewed asset exposureTunisia: 0 companies with reviewed asset exposureAlgeria: 0 companies with reviewed asset exposureJordan: 0 companies with reviewed asset exposureUnited Arab Emirates: 1 companies with reviewed asset exposureQatar: 0 companies with reviewed asset exposureKuwait: 0 companies with reviewed asset exposureIraq: 0 companies with reviewed asset exposureOman: 0 companies with reviewed asset exposureVanuatu: 0 companies with reviewed asset exposureCambodia: 0 companies with reviewed asset exposureThailand: 0 companies with reviewed asset exposureLaos: 0 companies with reviewed asset exposureMyanmar: 0 companies with reviewed asset exposureVietnam: 0 companies with reviewed asset exposureNorth Korea: 0 companies with reviewed asset exposureSouth Korea: 1 companies with reviewed asset exposureMongolia: 0 companies with reviewed asset exposureIndia: 0 companies with reviewed asset exposureBangladesh: 0 companies with reviewed asset exposureBhutan: 0 companies with reviewed asset exposureNepal: 0 companies with reviewed asset exposurePakistan: 0 companies with reviewed asset exposureAfghanistan: 0 companies with reviewed asset exposureTajikistan: 0 companies with reviewed asset exposureKyrgyzstan: 0 companies with reviewed asset exposureTurkmenistan: 0 companies with reviewed asset exposureIran: 0 companies with reviewed asset exposureSyria: 0 companies with reviewed asset exposureArmenia: 0 companies with reviewed asset exposureSweden: 0 companies with reviewed asset exposureBelarus: 0 companies with reviewed asset exposureUkraine: 0 companies with reviewed asset exposurePoland: 0 companies with reviewed asset exposureAustria: 0 companies with reviewed asset exposureHungary: 0 companies with reviewed asset exposureMoldova: 0 companies with reviewed asset exposureRomania: 0 companies with reviewed asset exposureLithuania: 0 companies with reviewed asset exposureLatvia: 0 companies with reviewed asset exposureEstonia: 0 companies with reviewed asset exposureGermany: 0 companies with reviewed asset exposureBulgaria: 0 companies with reviewed asset exposureGreece: 0 companies with reviewed asset exposureTurkey: 1 companies with reviewed asset exposureAlbania: 0 companies with reviewed asset exposureCroatia: 0 companies with reviewed asset exposureSwitzerland: 0 companies with reviewed asset exposureLuxembourg: 0 companies with reviewed asset exposureBelgium: 0 companies with reviewed asset exposureNetherlands: 0 companies with reviewed asset exposurePortugal: 0 companies with reviewed asset exposureSpain: 0 companies with reviewed asset exposureIreland: 0 companies with reviewed asset exposureNew Caledonia: 0 companies with reviewed asset exposureSolomon Islands: 0 companies with reviewed asset exposureNew Zealand: 0 companies with reviewed asset exposureAustralia: 2 companies with reviewed asset exposureSri Lanka: 0 companies with reviewed asset exposureChina: 0 companies with reviewed asset exposureTaiwan: 0 companies with reviewed asset exposureItaly: 0 companies with reviewed asset exposureDenmark: 0 companies with reviewed asset exposureUnited Kingdom: 1 companies with reviewed asset exposureIceland: 0 companies with reviewed asset exposureAzerbaijan: 0 companies with reviewed asset exposureGeorgia: 0 companies with reviewed asset exposurePhilippines: 0 companies with reviewed asset exposureMalaysia: 0 companies with reviewed asset exposureBrunei: 0 companies with reviewed asset exposureSlovenia: 0 companies with reviewed asset exposureFinland: 0 companies with reviewed asset exposureSlovakia: 0 companies with reviewed asset exposureCzechia: 0 companies with reviewed asset exposureEritrea: 0 companies with reviewed asset exposureJapan: 0 companies with reviewed asset exposureParaguay: 0 companies with reviewed asset exposureYemen: 0 companies with reviewed asset exposureSaudi Arabia: 0 companies with reviewed asset exposureAntarctica: 0 companies with reviewed asset exposureNorthern Cyprus: 0 companies with reviewed asset exposureCyprus: 0 companies with reviewed asset exposureMorocco: 0 companies with reviewed asset exposureEgypt: 0 companies with reviewed asset exposureLibya: 0 companies with reviewed asset exposureEthiopia: 0 companies with reviewed asset exposureDjibouti: 0 companies with reviewed asset exposureSomaliland: 0 companies with reviewed asset exposureUganda: 0 companies with reviewed asset exposureRwanda: 0 companies with reviewed asset exposureBosnia and Herzegovina: 0 companies with reviewed asset exposureNorth Macedonia: 0 companies with reviewed asset exposureRepublic of Serbia: 0 companies with reviewed asset exposureMontenegro: 0 companies with reviewed asset exposureKosovo: 0 companies with reviewed asset exposureTrinidad and Tobago: 0 companies with reviewed asset exposureSouth Sudan: 0 companies with reviewed asset exposure
Shading = companies with documented mineral interestsCountry-level exposure; no site pins inferred
Canada 44 ↗United States 15 ↗Australia 2 ↗Brazil 2 ↗United Arab Emirates 1 ↗Chile 1 ↗United Kingdom 1 ↗South Korea 1 ↗Madagascar 1 ↗Namibia 1 ↗Peru 1 ↗Türkiye 1 ↗

A company can appear in several countries. Mineral interests include exploration, development and operating assets. Headquarters addresses are counted separately. Map boundaries: Natural Earth, public domain.

Ontario: the issuer register

62Reviewed issuer identities
62Canadian headquarters
0U.S. headquarters
28At or below C$300m in dated data

62 matching issuers

Company / securityHeadquartersMineral exposureDated equity valueFollow
Adex Mining Inc. ↗TSXV: ADEOntario, CanadaAsset countries: CanadaMolybdenum · Tin · Tungsten · ZincC$91.42mCAD · 2026-07-31Valuation source ↗
Agnico Eagle Mines Limited ↗TSX: AEMOntario, CanadaAsset countries: CanadaCopper · Silver · ZincC$103.15bnCAD · 2026-07-31Valuation source ↗
Americas Gold and Silver Corp. ↗TSX: USAOntario, CanadaAsset countries: United StatesAntimony · Copper · Lead · SilverC$1.80bnCAD · 2026-07-31Valuation source ↗
Andean Precious Metals Corp. ↗TSX: APMOntario, CanadaAsset countries: United StatesSilverC$841.21mCAD · 2026-07-31Valuation source ↗
Appia Rare Earths & Uranium ↗CSE: APIToronto, Ontario, CanadaAsset countries: Brazil, CanadaGallium · Rare earths · UraniumNot reviewedNo dated valuation available
Avalon Advanced Materials ↗TSX: AVLOntario, CanadaAsset countries: CanadaLithium · Niobium · Rare earths · Tantalum · Tin+1 more in profileC$21.82mCAD · 2026-07-31Valuation source ↗
Barrick Mining Corp. ↗TSX: ABXOntario, CanadaAsset countries: United StatesCopper · SilverC$84.68bnCAD · 2026-07-31Valuation source ↗
Benton Resources Inc. ↗TSXV: BEXOntario, CanadaAsset countries: CanadaCopperC$23.30mCAD · 2026-07-31Valuation source ↗
Black Swan Graphene Inc. ↗TSXV: SWAN · OTCQX: BSWGFToronto, Ontario, CanadaAsset countries: Canada, United KingdomGraphiteC$46.94mCAD · 2026-07-31Valuation source ↗
Borealis Mining Company Ltd. ↗TSXV: BOGOOntario, CanadaAsset countries: United StatesSilverC$125.45mCAD · 2026-07-31Valuation source ↗
Brookfield Corp. ↗TSX: BNOntario, CanadaAsset countries: United StatesHafnium · ZirconiumC$150.33bnCAD · 2026-07-31Valuation source ↗
Canada Carbon ↗TSXV: CCBOntario, CanadaAsset countries: CanadaGraphiteC$1.21mCAD · 2026-07-31Valuation source ↗
Canada Nickel ↗TSXV: CNCOntario, CanadaAsset countries: CanadaChromium · Cobalt · NickelC$374.30mCAD · 2026-07-31Valuation source ↗
Canadian Copper Inc. ↗CSE: CCIBurlington, Ontario, CanadaAsset countries: CanadaCopper · Lead · Silver · ZincNot reviewedNo dated valuation available
Canadian North Resources Inc. ↗TSXV: CNRIOntario, CanadaAsset countries: CanadaCobalt · Copper · Nickel · Platinum group metalsC$22.29mCAD · 2026-07-31Valuation source ↗
Centerra Gold Inc. ↗TSX: CGOntario, CanadaAsset countries: Canada, United StatesCopper · Molybdenum · Rhenium · SilverC$4.73bnCAD · 2026-07-31Valuation source ↗
Champion Electric Metals Inc. ↗CSE: LTHMToronto, Ontario, CanadaAsset countries: United StatesCobaltNot reviewedNo dated valuation available
Clean Air Metals Inc. ↗TSXV: AIROntario, CanadaAsset countries: CanadaCopper · Nickel · Platinum group metals · SilverC$12.53mCAD · 2026-07-31Valuation source ↗
Critical One Energy Inc. ↗CSE: CRTLToronto, Ontario, CanadaAsset countries: Canada, NamibiaAntimony · Uranium · CopperNot reviewedNo dated valuation available
Denison Mines Corp. ↗TSX: DML · NYSE American: DNNOntario, CanadaAsset countries: CanadaUraniumC$3.58bnCAD · 2026-07-31Valuation source ↗
EV Nickel Inc. ↗TSXV: EVNIOntario, CanadaAsset countries: CanadaChromium · Cobalt · Copper · Nickel · Platinum group metalsC$20.89mCAD · 2026-07-31Valuation source ↗
First Lithium Minerals Corp. ↗CSE: FLMToronto, Ontario, CanadaAsset countries: ChileLithiumNot reviewedNo dated valuation available
Formation Metals Inc. ↗CSE: FOMOToronto, Ontario, CanadaAsset countries: CanadaNickel · Copper · CobaltNot reviewedNo dated valuation available
Fortune Minerals Limited ↗TSX: FTOntario, CanadaAsset countries: CanadaBismuth · Cobalt · CopperC$83.48mCAD · 2026-07-31Valuation source ↗
Frontier Lithium ↗TSXV: FLOntario, CanadaAsset countries: CanadaCesium · Lithium · Niobium · Rubidium · Tantalum+1 more in profileC$101.48mCAD · 2026-07-31Valuation source ↗
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Market capitalization is a dated source value, not a live quote. CAD bands avoid mixing currencies and do not assign a universal “microcap” label. Missing values remain unclassified. Listing status, headquarters and asset information have separate source dates.

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Related industries, roles & company locations

Mineral resources organizations & companies ↗Exploration & project development organizations & companies ↗Mining & extraction organizations & companies ↗Processing & advanced materials organizations & companies ↗Refining & mineral processing organizations & companies ↗Directors & board members in the mineral industry ↗Executives & management in the mineral industry ↗Technical & corporate advisers in the mineral industry ↗Antimony company directors, executives & advisers ↗Cobalt company directors, executives & advisers ↗Copper company directors, executives & advisers ↗Gallium company directors, executives & advisers ↗Graphite company directors, executives & advisers ↗Lead company directors, executives & advisers ↗Lithium company directors, executives & advisers ↗People at mineral companies headquartered in Canada ↗People at mineral companies headquartered in Ontario, Canada ↗People at mineral companies headquartered in Toronto, Ontario ↗