Highlights

  • ANT has entered the integrated processing and concentrate recovery phase at its Tecomatlán plant in Puebla, Mexico.
  • Key processing circuits are functioning, with the plant in a controlled ramp-up.
  • About 40 tonnes of low-grade test material has been processed to optimise concentrate production.
  • Arrangements for an initial commercial sale are being advanced.

Antimony Resources Limited (ASX:ANT) has announced that it has moved into the integrated processing and concentrate recovery phase of its Proof-of-Concept programme at the Tecomatlán antimony plant in Puebla, Mexico. The company is working towards producing its first marketable antimony concentrate.

Plant Ramp-Up at Tecomatlán

Following progressive optimisation, the key processing circuits at Tecomatlán are now functioning, and the plant is undergoing a controlled ramp-up. About 40 tonnes of low-grade test material has been processed and recycled through the plant to optimise concentrate production.

The current Proof-of-Concept campaign targets about 200 tonnes of previously prepared feed from Chinantla, a third-party source. The aim is to demonstrate that the plant can produce marketable antimony concentrate. ANT also expects to introduce on-site XRF analytical capability soon to monitor feed, concentrate and tailings grades before moving to higher-grade feed.

Path to First Commercial Sale

Executive Chairman Shane Menere said the company's focus is on consistent concentrate production, validating product quality and progressing a first commercial sale. He described the progress as a step in building ANT's integrated North American antimony business, noting, "With our processing circuits now functioning and the Proof-of-Concept programme advancing."

Once the first bulk concentrate is produced, ANT plans to carry out sampling and independent assay verification to confirm final product specifications and metallurgical performance. These results will support initial concentrate commercialisation and planning for the next development phase. The company noted that the Chinantla campaign is not based on a production target or feasibility study, and there is no certainty that concentrate will meet specifications or be sold.

Broader Project Portfolio

Tecomatlán serves as the company's regional processing hub. About 50km away, the high-grade Los Lirios Antimony Project is being advanced towards a maiden JORC Mineral Resource and as a possible future source of proprietary feed.

ANT also holds the 100%-owned Dollar and Milton antimony assets in Nevada, USA. The company expects to provide further updates as concentrate production progresses and verified volumes, grades and recovery results become available.

Key Takeaways

  • The Tecomatlán plant has moved into the concentrate recovery phase, with circuits now functioning.
  • The Proof-of-Concept campaign aims to demonstrate production of marketable antimony concentrate.
  • Independent assay verification will follow the first bulk concentrate production.
  • Los Lirios and the Nevada assets form part of ANT's broader North American antimony strategy.