Green Technology Metals appoints engineering consultant to optimise and lead Seymour DFS
Green Technology Metals calls on Altris Engineering to optimise Seymour site layout, water and waste management strategies and overall project design.
Special Report: Green Technology Metals has appointed experienced consultant Altris Engineering to optimise and lead finalisation of the Seymour lithium project definitive feasibility study.
- Experienced consultant Altris Engineering appointed to optimise Seymour DFS
- Work to include optimising site layout, water and waste management strategies, and overall project design
- Development ramp-up targeted for Q1 2026 with final investment decision in Q2 2026
Altris has extensive experience in mining project development and a proven record of delivering feasibility-level studies across Canada.
It will apply its expertise in hard rock mining feasibility studies to optimise the site layout, water and waste management strategies, and overall project design.
The move is in line with Green Technology Metals’ (ASX:GT1) continued operation in cash conservation mode while advancing critical project development activities.
This involves a balanced approach to DFS completion, completing work internally where practical and engaging Altris to lead technical studies essential for permitting and approvals
Critical DFS workstreams are progressing in parallel with permitting, Indigenous consultation and optimisation of the layout and water storage facilities.
“The appointment of Altris Engineering marks a key step in completing the DFS while maintaining our disciplined cash-conservation strategy,” managing director Cameron Henry said.
“The Altris team is well versed in the design and delivery of spodumene concentrators globally and will add significant value to the works already completed.
“We are well positioned to accelerate development in Q1 2026, aligned with the anticipated lithium market recovery, and Seymour will be ready to move rapidly toward construction, positioning GT1 to become Ontario’s first lithium producer at an optimal point in the cycle."
Seymour project
The 151.4km2 Seymour project in Ontario sits near the town of Armstrong and ~230km north of Thunder Bay.
It has a resource of 10.3Mt at 1.07% Li2O along with a rubidium resource of 8.3Mt at 0.27% Rb2O.
Pilot-scale testwork of concentrate from the project has produced battery-grade lithium hydroxide with exceptional overall recoveries averaging >94%.
GT1’s DFS incorporates significant updates to the project design since the 2025 preliminary economic assessment with a layout reflecting extensive consultation with Indigenous partners during the closure plan process.
This resulted in a more cost-effective design that supports permitting while responding to community feedback.
The company plans to use dense media separation processing with no chemical reagents, delivering a simple, environmentally responsible flowsheet with straightforward rehabilitation requirements.
Most cost inputs have been addressed by geotechnical studies, mining dilution and cost assessments, metallurgical testwork, and construction and operational planning.
Waste and water strategy optimisation is expected to further reduce the environmental footprint and lower capex, improving overall project economics compared to the PEA.
Areas of immediate focus are the completion of the closure plan, technical reviews and consultation with First Nations partners, and site layout finalisation.
Road ahead
Multiple analysts have forecast a lithium market rebound in 2026 with S&P Global saying prices will continue to uptrend into the 2030s while Goldman Sachs projects lithium carbonate (China) prices will rise from US$11,000/t in 2025 to US$13,250/t in 2026 and US$17,077/t by 2028.
With this broad consensus, GT1 expects to carry out a full ramp-up of DFS activity in Q1 2026.
This includes the acceleration of underground mining studies within the revised site layout and a comprehensive re-evaluation of key infrastructure, with several workstreams revisited to align with the updated layout and optimised project configuration.
All of this is aimed at supporting the timeline towards a final investment decision in Q2 2026.
This article was developed in collaboration with Green Technology Metals, a Stockhead advertiser at the time of publishing.
This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.
Originally published as Green Technology Metals appoints engineering consultant to optimise and lead Seymour DFS
