Green Technology Metals (ASX:GT1) makes strategic Rubidium play at Seymour

In a development that adds a new layer of strategic value to its Canadian lithium portfolio, Green Technology Metals (ASX:GT1) has unveiled a maiden Rubidium Mineral Resource at its Seymour Project in Ontario.

The inclusion of this high-value, critical mineral has the potential to bolster project economics and establish GT1 as a rare dual-commodity player targeting the energy transition.

Highlights

• Maiden Rubidium Mineral Resource: 8.3Mt @ 0.27% Rb₂O (~23,000t contained), including a high-grade core of 3.4Mt @ 0.40% Rb₂O
• Hosted within Seymour’s existing 8.3Mt lithium resource
• Rubidium is a premium-priced critical mineral (USD $1,060/kg) used in quantum tech, defence, aerospace and electronics
• Historic testwork confirms Rubidium grades of up to 1.3% in mica-rich waste streams
• Potential low-cost by-product recovery through GT1’s existing lithium flowsheet
• Seymour ranks among the world’s most significant Rubidium resources

Managing Director Cameron Henry described the discovery as “an exciting new dimension” to the Seymour Project’s value proposition:

“As one of the largest high-grade Rubidium resources on the ASX and the most substantial in Canada, Seymour is well positioned to play a critical role in the global supply of this high-value specialty metal.”

Importantly, the Rubidium is hosted in muscovite mica, already separated during lithium processing. This means by-product recovery could be achieved with minimal capital investment.

Given Rubidium’s scarcity and its inclusion on critical mineral lists in the United States and Japan, GT1’s Ontario location offers proximity to strategic buyers with secure supply mandates.

Rubidium’s applications span fibre optics, quantum computing, medical imaging and ion engines for spacecraft.

With a forecast market growth from USD $4.63 billion in 2023 to $8 billion by 2033, GT1’s early-mover advantage could yield significant upside.

The next step for Green Technology Metals will be targeted testwork to assess recovery efficiency and determine the commercial potential of Rubidium as a saleable by-product.

If successful, Seymour may transition from a lithium-focused operation to a dual-commodity project supplying both energy storage and high-tech markets.

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