EV Resources (ASX:EVR) Hits 81% Antimony Recovery in Tecomatlán Flotation Test Work

EVR

2 min read | June 24, 2026 11:43 AM AEST | By Sonal Goyal

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EV Resources (ASX:EVR) Hits 81% Antimony Recovery in Tecomatlán Flotation Test Work — Image source: Company Update

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Highlights

EV Resources confirms 81.1% antimony recovery from the Chinantla ore through a flotation-led processing route, outperforming gravity-based methods.

Test work demonstrates commercial grade concentrate up to 62.9% Sb, exceeding typical smelter specifications.

A conventional multi-stage flotation circuit has been identified as the preferred processing route, with further optimisation work underway to enhance recovery and grade.

Existing plant infrastructure will be leveraged with low additional CAPEX.

Integrated permitting and construction timeline targets first production in 10–12 months.

EV Resources Limited (ASX:EVR) has taken a material step forward in its strategy to establish a regional antimony processing hub in Mexico. The company has released independent metallurgical test results confirming a flotation-led processing flowsheet as the optimal processing route for its Tecomatlán Processing Plant in Puebla.

Test work on ore from the Chinantla antimony project demonstrated that flotation delivers significantly higher antimony recovery compared with gravity concentration methods. The findings support the company's decision to pursue an integrated flotation upgrade at its Tecomatlán Processing Plant.

Flotation Route Delivers Highest Recovery

The comparative test program evaluated three processing methods for Chinantla ore: gravity concentration only, gravity concentration followed by flotation, and bulk flotation.

Results showed that bulk flotation achieved the highest antimony recovery of 81.1%, compared with 74.04% recovery from gravity plus flotation and 29.25% recovery from gravity concentration alone. The flotation route also produced a concentrate grading 42.4% antimony (Sb), making it the highest-performing option among the three pathways tested.

The company said the ore responds well to conventional sulphide flotation methods and has demonstrated the ability to produce an antimony concentrate grading more than 60% Sb, exceeding typical smelter requirements.

Further test work is underway to validate a complete conventional flotation flowsheet, which is expected to enhance concentrate grades.

EVR shares traded at AUD 0.007 per share at the time of writing on 24 June 2026.

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