St Barbara Limited ('St Barbara' or the 'Company') (ASX: SBM) is pleased to announce that all assay results have now been returned for the resource definition drilling of the Pigibo portion of the 31 hole, 7,500-metre diamond drill program at the Simberi Operations in Papua New Guinea (PNG).

At Pigibo, eight resource definition drill holes were completed for 1,492.3 m. Managing Director and CEO Andrew Strelein said 'Hole SDH550 intersected 40 m at 3.1 g/t Au from 21 m, including 24 m at 4.4 g/t Au from 37 m, and is another very encouraging broad intercept from within the current Mineral Resource.' 'Hole SDH532 intersected 21 m @ 2.7 g/t Au from 54 m, including 10 m @ 4.6 g/t Au from 63 m and hole SDH536 intersected 36 m @ 1.7 g/t Au from 97 m, including 6 m @ 5.6 g/t Au from 113 m. Holes SDH532 and SDH536 are located around 30 m and 50 m respectively below the current conceptual sulphide pit design.' 'Whilst these drilling results won't be able to be included in the Mineral Resource and Ore Reserve update currently underway, they would be included in subsequent updates.' 'Having almost completed our first sulphide diamond drilling program since 2011 we believe significant potential remains for defining additional sulphide ore'.

The FY24 Simberi sulphide resource definition drilling program comprised 23 holes for 4,587.6 m including 15 holes at Sorowar - Pigiput trend (reported previously) and eight new holes at Pigibo. The eight Pigibo resource definition drill holes (SDH532, 535, 536, 539, 543, 545, 550 and 553) for 1,492.3 m were completed by end of April 2024. The Simberi sulphide exploration component of the drilling program comprising eight holes for 2,900 m is 85% complete. The program includes four holes at Sorowar - Pigiput (reported previously) and four holes at Pigibo testing for mineralisation down dip outside any current Inferred Resource area. To date, seven holes have been completed for 2,494.1 m.

In addition, significant assay results are displayed for two recent Pigibo metallurgical drill holes completed in the area. The location of three completed exploration holes with pending assays are highlighted. One exploration hole for 420 m remains to be drilled at Pigibo, and is expected to be completed by by end of June 2024. Assay results for all four Pigibo exploration drill holes are expected to be received by September 2024.

Contact:

David Cotterell

General Manager Business Development & Investor Relations

Tel: +61 3 8660 1959

Email: info@stbarbara.com.au

Paul Ryan

Tel: +61 409 296 511

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

(C) 2024 Electronic News Publishing, source ENP Newswire