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hub.truesourcemetals.com · Ecosystem · Junior mining explorers & small-cap exchanges

Junior Mining Explorers & Small-Cap Exchanges

Junior mining explorers — companies in exploration and early-stage development — raise capital on dedicated small-cap exchanges including TSX Venture Exchange (Canada), ASX (Australia) and AIM (London). They are subject to resource disclosure requirements under NI 43-101 (Canada), JORC (Australia) and the UK Listing Rules, and present their projects at industry conventions such as PDAC. This directory lists the principal exchanges, associations and disclosure systems relevant to junior mining.

Primary sources only 8 providers Updated 2026-06-19
Neutrality. TrueSource Metals Hub does not endorse any exchange, association or information service for investment purposes. Entries reproduce facts from each organisation's own published materials. See the full Ecosystem neutrality statement.

Junior mining exchanges, associations and disclosure systems

Alphabetical.

AIM (London) — Mining Companies

Role
UK small-cap equity market — London
Role
UK small-cap equity market for mining and exploration companies; access to London-based institutional and retail investors.
Disclosure
AIM Rules for Companies govern ongoing disclosure; AIM Note for Mining and Oil & Gas Companies provides sector guidance.
Primary source: londonstockexchange.com — AIM

AME BC — Association for Mineral Exploration British Columbia

Role
BC mineral exploration association — Vancouver
Role
Industry association for BC mineral exploration; advocacy, professional development and community engagement.
Conference
Annual Mineral Exploration Roundup (MER), held in Vancouver each January — one of Canada's major junior mining conferences.
Primary source: amebc.ca

ASX Resources — Australian Securities Exchange

Role
Australian national stock exchange — Sydney
Role
Primary listing market for junior mining and exploration companies; requires JORC-compliant resource/reserve reporting under ASX Listing Rules Chapter 5.
Coverage
700+ resources companies listed; predominance of gold, lithium, copper, nickel and iron ore explorers.
Primary source: asx.com.au — Listed Companies

Junior Mining Network

Role
Junior mining news and information platform
Role
News aggregation and investor information platform for junior mining equities; not a regulatory or exchange body.
Coverage
Global coverage of TSX-V, ASX, AIM and OTC junior miners; editorial coverage of exploration results, financings and technical reports.
Primary source: juniorminingnetwork.com

PDAC — Prospectors & Developers Association of Canada

Role
Canadian mineral exploration association — Toronto
Role
Industry advocacy, professional development (CSR guidance, e3 Plus responsible exploration), and the annual PDAC Convention.
Convention
PDAC Convention (Toronto, Metro Toronto Convention Centre, annually in March) — 25,000+ attendees, 1,100+ exhibitors.
Primary source: pdac.ca

SEDAR+ — System for Electronic Document Analysis and Retrieval (Canada)

Role
Canadian securities disclosure system — CSA
Role
Official public repository of Canadian securities filings; NI 43-101 Technical Reports, annual information forms, material change reports and news releases filed by all reporting issuers.
Access
Public access at sedarplus.ca; supersedes the legacy SEDAR system (transitioned 2023).
Primary source: sedarplus.ca

S&P/ASX Small Resources Index

Role
ASX junior resources index — S&P Dow Jones Indices
Role
ASX small-cap resources index; constituent selection follows S&P/ASX index methodology; used as benchmark for Australian junior resources funds.
Coverage
Components include ASX-listed gold, copper, lithium, nickel and other resources companies below the mid/large-cap threshold.
Primary source: spglobal.com/spdji — S&P/ASX Small Resources

TSX Venture Exchange — Mining Companies

Role
Canadian junior mining stock exchange — Toronto
Role
Primary junior mining equity market in Canada; facilitates capital raising for exploration and development-stage companies through IPOs, private placements and flow-through share financings.
Coverage
600+ mining and exploration companies listed; gold, silver, copper, lithium, nickel and base metals dominance.
Primary source: tsx.com — Mining

Related TSM Hub pages

Primary sources