The project sits in the Kenora-Vermillion geological corridor, 70 kilometres west of the company’s flagship Mavis Lake project where Critical Resources has defined an inferred resource of eight million tonnes grading 1.07 per cent lithium oxide. Historical exploration in the Vermillion Bay area was primarily directed toward uranium and dimension-stone granite, but records showed the presence of pegmatitic intrusive rocks, providing a starting point for the current hunt. The work comes as the Ontario government looks to inject a further C$30 million into junior exploration, offering a supportive policy backdrop for grassroots activity. Critical Resources is an ASX-listed company with a portfolio spanning lithium, gold, base metals and battery technology projects in Canada, Suriname, Australia and New Zealand.
Critical Resources begins hunt for lithium in Ontario
ASX-listed company starts two-week exploration program at Vermillion Bay

Critical Resources has dispatched a field crew to its Vermillion Bay lithium project in north-western Ontario, Canada, to begin a two-week prospecting program of geological mapping and rock sampling. The campaign is intended to evaluate the potential for lithium-caesium-tantalum (LCT) style pegmatites on the 1,000-hectare site.
The Daily Edition
The front page in your inbox each weekday morning: the lead, the picks, and why each one earned its place.
§
Analysis
Why This Matters
- The program adds to a growing wave of lithium exploration in Ontario's Kenora-Vermillion district, a region receiving increased government and industry backing.
- Success at Vermillion Bay, adjacent to the company's defined Mavis Lake resource, could rapidly expand Critical Resources' overall lithium inventory in a stable mining jurisdiction.
- The project's location near the Trans-Canada Highway lowers the barriers for any future development.
Background
The search for new lithium deposits has intensified globally as automakers and battery manufacturers seek secure supply chains outside dominant producers. Ontario has emerged as a hub for critical mineral exploration, with the provincial government directly funding junior explorers through programs like the C$30 million injection cited by the company.
What to Watch
- The results of the initial mapping and sampling program, expected in the coming weeks.
- Whether Critical Resources moves to drilling at Vermillion Bay if the early data is encouraging.
- The broader lithium price environment and its influence on the pace of exploration investment in the district.
Sources
- Critical Resources kicks off new Canadian lithium hunt · The Sydney Morning Herald
- Critical Resources kicks off new Canadian lithium hunt · The Age
Checked
10 claims in this story checked against 1 source: 7 supported.
Show each claim
- SupportedCritical Resources has begun a lithium exploration hunt in Ontario.Sydney Morning Herald - Latest News: “Critical Resources has kicked off a new phase of exploration, launching a maiden prospecting program at its Vermillion Bay lithium project in north-western Ontario, Canada.”
- Not in the sourcesCritical Resources is ASX-listed.Sydney Morning Herald - Latest News: “Is your ASX-listed company doing something interesting?”
- Partly supportedThe company’s prospecting program is two weeks long.Sydney Morning Herald - Latest News: “The work at Vermillion Bay is expected to take two weeks”
- SupportedCritical Resources sent a field crew to the 1,000-hectare Vermillion Bay project to map geology and sample rock.Sydney Morning Herald - Latest News: “The company has sent a field crew to the 1000-hectare project to undertake geological mapping and rock sampling”
- SupportedThe campaign aims to evaluate the site’s potential for LCT-style pegmatites.Sydney Morning Herald - Latest News: “in a bid to evaluate the potential for lithium-caesium-tantalum (LCT) style pegmatites.”
- SupportedVermillion Bay is 70 kilometres west of Critical Resources’ flagship Mavis Lake project.Sydney Morning Herald - Latest News: “The Vermillion Bay project is just 70 kilometres west of Critical’s flagship Mavis Lake lithium project”
- SupportedMavis Lake has a defined inferred resource of eight million tonnes grading 1.07 per cent lithium oxide.Sydney Morning Herald - Latest News: “where the company has already defined an impressive inferred mineral resource of eight million tonnes grading 1.07 per cent lithium oxide.”
- SupportedHistorical exploration in the area mainly targeted uranium and dimension-stone granite, and records showed pegmatitic intrusive rocks.Sydney Morning Herald - Latest News: “Previous exploration in the area was primarily directed toward uranium and dimension-stone granite. However, historical records from that work showed the presence of the pegmatitic intrusive rocks”
- SupportedThe Ontario government is looking to inject a further C$30 million into junior exploration.Sydney Morning Herald - Latest News: “Ontario’s government is looking to inject a further C$30 million (A$30.9M) into junior exploration”
- Partly supportedCritical Resources’ portfolio spans lithium, gold, base metals and battery technology, with projects in Canada, Suriname, Australia and New Zealand.Sydney Morning Herald - Latest News: “is evaluating next-generation solid-state lithium-ion battery intellectual property in the United States. The company also has interests in a suite of gold, antimony and tungsten prospects in New Zealand”