At the Prospectors & Developers Association of Canada (PDAC 2026) convention in Toronto, InvestorNews.com host Peter Clausi revisited a conversation first recorded two years earlier with Robert Stewart, Managing Director and Founder of Geophysx Jamaica Ltd., an exploration company searching for greenfield mineral discoveries in Jamaica with a focus on copper, gold, and rare earth metals.
“Last time you were here, you told me that you had obtained data over about 45% of the island of Jamaica,” Clausi said. “I probably made this face, but now you tell me you have a lot more.”
“Yes, we actually did the entire island,” Stewart replied. “Everywhere that wasn’t a protected area, we have sampled.” Stewart said the work combined extensive geochemistry with airborne surveys. “We did about 45,000 samples—assays of rock, stream sediment, or soil. We’ve also flown more than 20,000 line kilometres of airborne geophysical surveys.” The surveys included “everything from mobile magnetotellurics (MT) to magnetics and spectral surveys,” he said. “We’ve built a huge information database and licensed a lot of ground along the way that was clearly anomalous.”
The work led to partnerships with major mining companies and the identification of drill-ready targets. “A couple of years ago we partnered with Barrick on the majority of the ground,” Stewart said. “They’re a fantastic partner, and they’re working very heavily now. We’ve identified at least one project that’s ready to drill.” When Clausi asked if the project type had been disclosed publicly, Stewart replied: “Yes—copper and gold.”
Stewart also described another partnership formed shortly before the Barrick agreement. “Shortly before the Barrick announcement, we also partnered with another company called C3,” he said. “They had a smaller area, and we combined two pieces of our respective ground into one super block for a gold play.” The company he referred to is C3 Metals Inc. (TSXV: CCCM) (OTCQB: CUAUF), a mineral exploration company with projects in Jamaica and Peru. “We’ve been drilling that as well,” Stewart said, adding that Geophysx is “also working with Freeport in another area in Jamaica.”
The conversation returned to a topic first mentioned during their previous interview: rare earth elements. “When we spoke last time, we also talked about rare earths,” Stewart said. “At that point we were just starting to touch on that topic.” He said the company has identified two sources of rare earth elements in Jamaica. “One is an in-situ deposit of about 100 million tonnes that is very high in rare earths. It’s a unique style of deposit. We also have licences over the red mud lakes from bauxite processing, which are also high in rare earths. There are about 140 million tonnes of that material.”
When Clausi asked whether the deposits contained both heavy and light rare earth elements, Stewart replied: “Yes, we have both. We have a very unique mix—about 42% heavy rare earths and 58% light rare earths. It’s unusual to find that kind of balance, so it’s quite unique.”
Clausi asked about the next stage of development and whether Jamaica might capture more of the supply chain through domestic processing. “The supply chain side isn’t really my specialty,” Stewart said. “But the more we can do locally, the better. The government would love that, and the people would love that. The first step is to start processing the material and generating output. From there we can begin building a supply chain. If we can do as much of that as possible in Jamaica, that would be fantastic.”
Reflecting on the progress since their earlier interview, Clausi noted how quickly the company had advanced. “We’ve been working hard,” Stewart said. “It’s a good team.” He added that the rare earth opportunity alone could support multiple operators. “For the rare earths, it’s clear that we have a lot of resource,” Stewart said. “The geographic distribution of the red mud ponds means that you could potentially have more than one player operating there. I think that will make Jamaica a very serious jurisdiction in terms of rare earth sourcing—and also gallium.”
Clausi asked whether Geophysx acts primarily as a project generator or remains involved as a long-term partner. “We’re generally an ongoing partner in most of what we do,” Stewart said. “Since about 2018, we’ve worked very hard to create these opportunities. If that counts as the project generator part, then yes—but it doesn’t happen without doing the work. You have to find the right people, vet their technology, and make sure that when you move forward you can hit the ground running.”
“Geophysx Jamaica—watch this company,” Clausi said. “It’s going to develop and become very interesting.”
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