Antimony Hill is a strategic critical minerals target within the Silver Star Resources portfolio, located approximately 12 kilometres east-southeast of the main Texas Silver Mine operations in the broader Texas district. The prospect sits on a prominent north–south ridge and includes historical shallow pits and surface scrapes, providing clear evidence of earlier activity and a long-recognised presence of antimony mineralisation.
As part of the wider project, Antimony Hill broadens Silver Star Resources exposure beyond silver by adding a compelling critical minerals opportunity. The prospect is supported by strong geological indicators, including visible stibnite in hand specimens from mullock heaps and highly anomalous soil sampling results, with values of up to 25,300 ppm Sb, 0.095 ppm Au and 3,170 ppm As. Together, these results point to a substantial antimony-bearing system within the broader mineralised corridor.
Antimony is a strategically important metal with broad industrial, technological, and defence relevance. Its growing importance across critical supply chains has made it an increasingly valuable raw material in both modern industry and national security applications. This importance is reinforced by the structure of global supply, which remains heavily concentrated in only a small number of countries. China accounts for approximately 53% of global production, followed by Russia at 20% and Pakistan at 19%, while Australia contributes only around 1%.
That makes antimony particularly significant from an Australian perspective. With such limited domestic production in a market exposed to concentration and disruption risk, access to new sources is becoming increasingly important. This is one of the reasons antimony is recognised as a critical mineral in Australia, the United States, the European Union, and Japan.
Its growing strategic relevance has also been reflected in the market, with the antimony price increasing from approximately A$8,500 per tonne in December 2021 to approximately A$30,500 per tonne in April 2026. While prices can be volatile, this increase highlights the stronger economic and strategic importance of antimony within a tightening global supply environment.
Some of the key applications driving that importance are outlined below.
Military and Defence Applications
Flame Retardants
Lead-Acid Batteries
Photovoltaic Glass
Semiconductors
A focused drilling program has been proposed at Antimony Hill comprising seven holes for approximately 370 metres. These holes are designed to test anomalous areas identified through soil sampling and to improve understanding of the extent and continuity of mineralisation across the prospect.
This proposed program represents the next step in advancing Antimony Hill from a historically recognised occurrence toward a more clearly defined exploration target within the Texas district.
Antimony Hill adds a valuable new dimension to the Silver Star Resources portfolio by combining a historically recognised prospect, visible evidence of mineralisation, and a defined follow-up drilling program with exposure to a commodity of increasing global importance.
As demand for antimony continues to strengthen across industrial, technological, and defence applications, while supply remains constrained and strategically significant, Antimony Hill stands out as a timely and highly relevant exploration opportunity within the Texas district. With strong market momentum, growing critical mineral importance, and clear next steps already identified, the prospect has the potential to become an important complementary asset within Silver Star Resources broader growth story.
