SINCLAIR GOLD LTD (ASX:SGC) has delivered further evidence of resource growth potential at its Mt Henry Gold Project in Western Australia, with step-out drilling extending mineralisation at both the Selene and Mt Henry deposits beyond the current 915,000-ounce gold resource.
The latest results come from Sinclair’s 50,000-metre resource growth campaign, where four diamond rigs are operating and assays remain pending from another 17 holes.
Mineralisation remains open at depth and along strike across both deposits, supporting the company’s plan to deliver an updated mineral resource estimate in the December 2026 quarter.
Selene extended to 600 metres down-dip
At Selene, which hosts 651,000 ounces and accounts for about 71% of the project resource, successive drilling has extended the interpreted mineralised system by a further 125 metres to around 600 metres down-dip.
Key new results include:
- 33.2 metres at 1.6 g/t gold from 230.7 metres, including 22.3 metres at 2.0 g/t;
- 24.1 metres at 0.9 g/t from 204 metres, including 15.1 metres at 1.0 g/t; and
- 11.7 metres at 1.1 g/t from 267 metres.
The broad intersections and shallow west-dipping geometry continue to support Sinclair’s interpretation of Selene as a large-scale, bulk-tonnage gold system.
Drilling will now begin testing the southern thickness trend, where the company sees potential for stronger grades, wider mineralisation and further resource growth.
Mt Henry central zone expands by 150%
At Mt Henry, which contains a resource of 232,000 ounces, drilling intersected multiple mineralised banded iron formation horizons outside the existing resource envelope.
Results included:
- 17 metres at 1.5 g/t gold from 180 metres;
- 7 metres at 2.8 g/t from 285.9 metres and 10.1 metres at 0.9 g/t from 302.9 metres;
- 8 metres at 1.8 g/t from 119 metres and 23.5 metres at 1.2 g/t from 133.5 metres; and
- 16.9 metres at 1.1 g/t from 217.7 metres, including 6.4 metres at 2.0 g/t.
In the central zone, interpreted mineralisation now extends to around 250 metres below the historical open pit — a 150-metre, or 150%, increase from the previous limit.
Sinclair said the lode geometry supports further open-pit resource growth while also highlighting potential for underground development.
Resource update on track
Chief executive Jeff Sansom said the results demonstrated the effectiveness of Sinclair’s geological model and targeting strategy.
“The mineralisation remains wide open at depth and along strike and we have numerous new targets to test within the 16km corridor,” he said.
“With four diamond rigs turning as part of the 50,000m program and a steady flow of assays ahead, we are on track to deliver a Resource update later this year.”
The campaign is backed by Sinclair’s recent $30 million capital raising.
About Sinclair Gold
Sinclair Gold acquired the Mt Henry Gold Project in February 2026.
The project, around 20 kilometres south of Norseman, hosts a JORC mineral resource of 24 million tonnes at 1.2 g/t gold for 915,000 ounces across the Selene, Mt Henry and North Scotia deposits.
These deposits sit within a 16-kilometre mineralised corridor, with most of the current resource defined in the upper 100 metres and substantial areas remaining lightly drilled.
Sinclair also holds interests in Sweden’s Bergslagen mining region, including the Falun copper-gold and polymetallic skarn project and the historic Sala silver-zinc-lead project.