St Barbara Limited has retracted historical surface sample exploration results from its 5 August announcement on accelerating Nova Scotia activity, citing a need to comply with ASX Listings Rules and JORC Code requirements for full historical datasets and supporting diagrams. The retraction does not affect the substance of the company’s exploration strategy, which shows material acceleration with exploration spending rising 64 percent from A$2.5 million in FY26 to A$4.1 million in FY27.
The underlying exploration program reflects significant operational expansion. The company’s Nova Scotia exploration team has doubled in size with further growth expected in FY28, and the team is planning up to 105 reverse circulation and interface reverse circulation drill holes totalling 4,400 metres across five to seven targets in the quarter to June 2027. Resource extension drilling at 15-Mile will test up to 8 holes for 1,000 metres, while exploration drilling within 75 kilometres of the proposed 15-Mile Processing Hub will test 21 holes for 1,500 metres across Dufferin, Lower Seal Harbour and Isaacs Harbour. A reconnaissance program at Patton, Falcon and Little Meander will undertake up to 76 interface holes for 1,900 metres.
Supporting this drilling is a comprehensive geophysical and sampling campaign. St Barbara will acquire approximately 50 square kilometres of high-resolution UAV magnetic survey data across 15-Mile, Old Austen Mine and Touquoy deposits, generating detailed magnetic images and three-dimensional inversion models. The company plans over 2,000 till and rock chip samples targeting up to 14 locations, with 70 percent focused on the 15-Mile Processing Hub and 30 percent on regional exploration. A structural geology review will assess four main deposits for additional near-mine drill targets, and a company-wide prospectivity study will evaluate the entire Meguma Terrane covering more than 40,000 square kilometres to prioritise a pipeline of 58 exploration targets.
The retraction, while procedural in nature, underscores the regulatory environment surrounding mineral exploration disclosure. Companies must provide complete historical datasets and supporting documentation to meet JORC Code standards, and St Barbara’s swift correction demonstrates compliance discipline. The acceleration in exploration spending and headcount suggests management confidence in the Nova Scotia portfolio, particularly the 46 initial exploration targets within 75 kilometres of the processing hub that could extend the proposed 11 year mine life.
Investors should monitor the results of the planned drilling programs and whether geophysical surveys generate new deposit extensions at existing sites. The scale of this exploration expansion, if productive, could materially alter the resource base at 15-Mile and surrounding deposits. This announcement is price sensitive and has been classified as material by the ASX.
View the full ASX announcement (PDF)
About St Barbara Limited (ASX: SBM)
St Barbara Limited is an Australian-based gold mining company with operations in Canada and Papua New Guinea. The company operates the Atlantic Operations in Nova Scotia, Canada, which includes the Touquoy mine, and the Simberi Operations in the province of New Ireland, Papua New Guinea. The company engages in the exploration, development, mining, and sale of gold, with additional interest in silver exploration.
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