Trigg Minerals (ASX:TMG) bolsters US strategy with high-profile antimony appointment

In a move poised to accelerate its ambitions in the United States critical minerals landscape, Trigg Minerals (ASX:TMG) has added heavyweight expertise to its board with the appointment of seasoned antimony executive Chris Gregory as Non-Executive Director.

With a career spanning over three decades and a resume that includes senior leadership roles at Rio Tinto and Mandalay Resources, Mr Gregory is best known for his pivotal role in the sustained success of the Costerfield Mine, Australia’s only producing antimony-gold operation.

His arrival marks a turning point for Trigg as it seeks to restart domestic antimony production at its Antimony Canyon Project (ACP) in Utah and develop downstream processing capability to supply the US market.

Key Highlights:

• Chris Gregory appointed Non-Executive Director, effective 28 July 2025

• Former VP Exploration at Mandalay Resources and Executive GM at Rio Tinto Asia

• Instrumental to long-term success of the Costerfield Mine in Victoria

• Brings deep technical, exploration and strategic experience

• Appointment aligns with Trigg’s US-focused antimony development and smelting strategy

Trigg Minerals is clearly signalling that it intends to become more than a developer of raw materials.

The addition of downstream processing to its vision, an ambition in step with US critical mineral policy demands not only capital and infrastructure but also deep sectoral knowledge and operational track record, both of which Mr Gregory brings in spades.

“The appointment of Chris Gregory marks another key strategic milestone as we advance our development pathway for the Antimony Canyon Project,” said Managing Director Andre Booyzen.
“Chris brings deep technical knowledge, leadership and global perspective to the Board, which will help us accelerate our strategy to become a leading US-based antimony producer and processor.”

Underpinning Mr Gregory’s incentive package is a performance rights structure aligned with Trigg’s strategic milestones, half vesting at a market capitalisation of $250 million, and half on achieving an Inferred Mineral Resource Estimate at ACP under JORC or SK-1300 compliance.

While the development of ACP and a smelter strategy will take time, the company appears to be building the right leadership bench to capture long-term value in a market where antimony is growing in strategic importance not least due to its role in ammunition, semiconductors and flame retardants.

Positioned for Growth
The appointment of Mr Gregory also reflects the board’s willingness to invest in expertise that can convert early-stage promise into production reality, a move likely to resonate with investors tracking the reshoring of critical minerals supply chains in North America.

With a strengthened board, a focused US strategy, and a globally experienced technical leader now in the fold, Trigg is setting the groundwork for a more ambitious push into the antimony supply chain, one that aligns with geopolitical shifts and industrial policy tailwinds.

For investors, the addition of Mr Gregory offers a vote of confidence in the company’s vision and its capacity to execute.

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