St Barbara Limited ('St Barbara' or the 'Company') (ASX: SBM) is pleased to announce assay results from the latest 11 drill holes of the now complete FY25 resource definition, exploration and sterilisation drill program at the Simberi Operations in Papua New Guinea (PNG) comprising 61 holes for 10,463.5 m. Assay results remain pending for a further 20 diamond drill holes from the program.
Importantly, the first holes from the maiden significant diamond drilling campaign targeting Samat sulphide resource have delineated high-grade sulphide mineralisation immediately below the current Samat sulphide open pit Ore Reserve (just beyond historical oxide RC grade control drilling depths). Assay results are pending for the remaining 10 holes from the 12-hole Samat resource definition drill program.
St Barbara Managing Director and CEO Andrew Strelein said: 'The identification of additional sulphide mineralisation extending or located immediately below the current sulphide open pit Ore Reserve at Samat and Sorowar - Pigiput Trend is very positive news. We are looking forward to the results of the remaining ten Samat drill holes to better understand the potential to define additional high-grade sulphide resources where historic diamond drilling is relatively sparse. Significantly, Samat was the first and highest grade of the oxide pits mined.' 'During the September quarter we anticipate the return of assay results for most of the remaining 20 resource definition, exploration and sterilisation holes drilled to date at Samat, Pigicow-Botlu, Pigibo North, Pigibo Botlu and Pigiput Northeast Trend.'
FY25 Resource Definition, Exploration and Sterilisation Drill Program The FY25 resource definition, exploration and sterilisation drill program completed at the Simberi Operations in PNG comprised 61 holes for 10,463.5 m. The program included: 34 holes for 5,166.1 m of resource definition drilling at both the Sorowar - Pigiput Trend and at the Samat deposit and 27 holes for 5,297.4 m of exploration and sterilisation drill testing in five further areas, including Pigibo North, Monun Extension, between Pigicow and Botlu, Pigiput Northeast Trend and between Pigibo and Botlu. The FY25 drill program included: 22 resource definition drill holes for 3,634.9 m completed at the Sorowar - Pigiput Trend; 12 resource definition drill holes for 1,531.2 m completed at Samat; 14 exploration/sterilisation drill holes for 2,680 m completed at Pigibo North; Six exploration drill holes for 1,088.9 m completed at Pigicow-Botlu; Three exploration drill holes for 946.6 m completed at Pigiput Northeast Trend; Two exploration drill holes at Monun Extension for 373.2 m and Two sterilisation drill holes for 208.7 m completed at Pigibo-Botlu. The final 10 diamond drill holes of the FY25 program were completed for 1,723.2 m during the June quarter. Assay results for the FY25 resource definition, exploration and sterilisation drill program have been reported progressively in three ASX Releases to date. Assay results for the first 13 drill holes were received during Q1 FY25, including 10 resource definition drill holes and three exploration/sterilisation drill holes (refer to ASX announcement on 17 October 2024 titled 'Significant Intercept of 31 m at 6.1 g/t Au at Sorowar - Pigiput Trend'). Assay results for an additional 11 drill holes were received in Q2 Dec FY25, including six resource definition drill holes and five exploration/sterilisation drill holes (refer to ASX announcement on 10 January 2025 titled 'New Oxide Discovery at Pigibo North, Update on Exploration/Sterilisation Drilling'). Assay results for 10 drill holes were received in Q3 FY25, including four Sorowar - Pigiput Trend exploration holes and six Pigibo North exploration/sterilisation drill holes (refer to ASX announcement on 30 April 2025 titled 'Quarterly Report Q3 March FY25'). Assay results for 11 drill holes in Q4 June FY25 are reported in this fourth update (SDH598, SDH600 to SDH605, SDH613, SDH615, SDH620 and SDH622). This includes four Sorowar - Pigiput Trend resource definition / exploration holes, four Pigicow-Botlu exploration holes, one Pigibo North exploration / sterilisation drill hole and two Samat resource definition holes.
Contact:
David Cotterell
General Manager Business Development & Investor Relations
Email: info@stbarbara.com.au
Tel: +61 3 8660 1959
Competent Persons Statement
The information in this report that relates to Exploration Results is based on information compiled by Dr Roger Mustard, who is a Member of The Australasian Institute of Mining and Metallurgy. Dr Mustard is a full-time employee of St Barbara and has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Dr Mustard consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
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