Green Technology Metals

Coarse Spodumene Concentrate Produced At Seymour With Lithium Recovery Exceeding 72%

Green Technology Metals Limited (ASX: GT1) (GT1 or the Company), a Canadian-focused multi-asset lithium business, is pleased to announce very high spodumene concentrate recoveries from its 100%-owned Seymour Project, located approximately 250km north of Thunder Bay in Ontario, Canada. The spodumene concentrate represents a critical milestone for the business and future off-take partners.

HIGHLIGHTS

  • Flagship Seymour concentrate recovery exceeds 72% using heavy liquid separation
  • Confirms simple 2 stage DMS flowsheet potential
  • Critical milestone for the PEA and future off-take partners
  • Test work based on 1000kg of representative composites as per preliminary mine plan
  • Very high recovery due to large spodumene crystal size
  • Concentrates now being sent for conversion work to Lithium Hydroxide

Figure 1: DMS test work being undertaken at SGS Canada’s facilities in Lakefield, Ontario

“The next few months will be an exciting time for the team at GT1 as we focus on increasing the value of our Flagship Seymour Project through metallurgical test work. These results will culminate part of our Preliminary Economic Assessment (PEA) and marks another important step closer to building a vertically integrated lithium business in Ontario, Canada.” - GT1 Chief Executive Officer, Luke Cox

Four composite samples totalling approximately 1000kg of recent and historic diamond core, derived from the Seymour pegmatite was selected, and shipped for testing. The samples represent the different mineralisation phases seen in the pegmatite within, what GT1 expect to be, the final open pit mine shell at Seymour.

Heavy liquid separation (HLS) test work was undertaken at SGS Canada’s facilities in Lakefield, Ontario. SGS compiled a master composite, based on the four samples selected, to provide a preliminary indication of the lithium beneficiation performance by utilising dense media separation (DMS).

Table 1 presents a summary table of the 8 mm HLS test results to achieve an HLS concentrate grade of 6.0% Li2O and 1.2 % Fe2O3. The resulting global HLS recovery, post magnetic separation including losses to HLS fines bypass, is 72%. This recovery has been reduced to align the laboratory magnetic separator with the industrial-scale equipment. The HLS result shows a strong potential to use DMS as the primary recovery method. Further work will continue to be completed for an optimised flowsheet that will ensure both maximised lithium unit recovery, and mass yield will be achieved for the Seymour deposit.


Click here for the full ASX release

This article includes content from Green Technology Metals, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

GT1:AU
The Conversation (0)
Glowing battery with green zigzag on a futuristic circuit board background.

Fastmarkets’ 2025 Lithium Conference to Tackle EV Growth, Battery Supply Chains and Market Outlook

Fastmarkets is set to host its 17th Lithium Supply and Battery Raw Materials Conference.

Scheduled to run from June 23 to 26 in Las Vegas, Nevada, the event will bring together global industry leaders to explore key topics shaping the future of the battery supply chain.

Discussions will cover lithium extraction technologies, including direct lithium extraction, as well as advances in processing, refining and recycling. More broadly, market outlooks, pricing trends and investment strategies will be analyzed alongside evolving ESG standards, policy impacts and risk management approaches.

Keep reading...Show less
Gina Rinehart, executive chair of Hancock Prospecting, stands in front of cherry blossom trees.

Inside Billionaire Gina Rinehart's Key Mining Investments

Australian billionaire Gina Rinehart has become a formidable force in the global mining industry.

After taking the helm of her father’s iron ore firm Hancock Prospecting in 1993, she embarked upon a diversification strategy that has vastly expanded her resource empire. Now Australia’s richest person, Rinehart has investments in many of the world’s most strategic commodities such as lithium, rare earths, copper, potash and natural gas.

One of those investments is Arafura Rare Earths (ASX:ARU,OTC Pink:ARAFF), which even in a low price environment for rare earths managed to secure nearly AU$1.5 billion in debt financing in mid-2024 to advance its Nolans project in the Northern Territory. With a 10 percent equity stake, Rinehart’s Hancock Prospecting is Arafura's largest shareholder.

Keep reading...Show less
Lithium Africa CEO Tyron Breytenbach.

Lithium Africa CEO Makes Case for Lithium Investing Amid Bear Market

The CEO of Lithium Africa is making a case for investing in lithium during the current bear market, saying recent moves by major players such as Rio Tinto (ASX:RIO,NYSE:RIO,LSE:RIO) indicate confidence in the market's longer-term potential.

“(Rio Tinto) is the second biggest miner of commodities on the planet. And late last year, they did the Arcadium Lithium transaction, which is the second largest transaction in corporate history, and they've picked lithium," Tyron Breytenbach said during an interview with the Investing News Network.

"Shortly after that, they followed on with a big, multibillion-dollar investment in Chile. Again, the commodity they picked was lithium."

Keep reading...Show less
Truck with drill rig at sunset in a dry, grassy landscape.

Rock Bottom: Strategic Window for Ground-level Lithium Investment in 2025

When lithium prices hit bottom, savvy investors know that’s exactly where the next big discovery begins — literally. Beneath the surface of global markets and remote exploration grounds, new opportunities are forming in the wake of a sharp price reset and renewed geopolitical urgency.

Macroeconomic and policy shifts in 2025 are creating ideal conditions for those willing to look past the headlines. While volatility in lithium prices has tempered short-term sentiment, the underlying demand trajectory remains strong. With governments reshaping supply chains to reduce reliance on China and accelerate the energy transition, lithium is emerging not only as a critical resource, but as a strategic investment theme with long-term upside.

For investors, this reset isn’t a retreat; it’s a rare chance to get in early, at ground level.

Keep reading...Show less

Latest Press Releases

Related News

×