Renison mine co-owner Metals X (ASX: MLX) has committed to investing A$17 million (approximately US$12 million) in Australian tin developer Stellar Resources (ASX: SRZ).
Metals X, Australia’s leading tin producer through its 50% stake in the Bluestone Mines Tasmania Joint Venture, will gain a holding of approximately 16.4% of Stellar Resources’ expanded capital and will nominate one director to the Stellar board.
The private placement comes as part of a larger A$22 million (approximately US$16 million) raise by Stellar Resources.
Managing Director of Stellar Resources, Simon Taylor, said the company is “delighted to welcome Metals X as a cornerstone investor and substantial shareholder…” and the investment is a “tremendous endorsement” of the Heemskirk project.
Taylor said the capital injection is “highly transformative” for Stellar, ensuring the company can rapidly advance the project through its upcoming prefeasibility study scheduled for Q3 2026 and straight into a definitive feasibility study. The funding will also allow the company to pursue its regional exploration efforts.
The Heemskirk project, which is itself only approximately 15 km from the historic Renison mine in Tasmania, saw an upgrade to its resource in 2026 to a total of 101,900 tonnes contained tin, grading an average of 0.87% Sn across its constituent deposits.
Earlier in April, Stellar Resources also reported improvements in metallurgical recoveries from test work at its Queen Hill deposit, paving the way for recoveries to exceed 70%. The results supported production of a final saleable tin concentrate grading 42-49% Sn.
Executive Director of Metals X, Brett Smith, said the company has “been closely monitoring the steady progress the Stellar team has achieved at the Heemskirk Tin Project. Their recent resource upgrade and the notable metallurgical improvements at Queen Hill highlight the underlying quality of the asset”.
This is the third major investment the company has made in tin developers, after gaining a 23% and 19% stake in British developer First Tin and Australian developer Elementos, respectively.
Metals X has benefitted greatly from expanding production at Renison and elevated tin prices over the past three years, seeing post-tax net profits rise 2.2% in 2025 to A$105 million (approximately US$75 million), giving the company significant capital to invest.
Our view: As the third major investment made by Metals X into a tin explorer, the company is making a clear move towards becoming an institutional investor in the tin industry. ITA looks forward to the accelerated progression of mine studies at Heemskirk as the industry heads towards projected deficits.
Stellar Resources, First Tin, and Elementos are members of ITA’s Explorers & Developers Group. Bluestone Mines Tasmania Joint Venture is a Member of the International Tin Association.
