ST BARBARA LIMITED — Earnings Release 2025

Jul 14, 2025

==> picture [595 x 122] intentionally omitted <==

15 July 2025

Q4 Preliminary Sales, Production, Cash and Listed Investments Update

St Barbara Limited (“ St Barbara ” or the “ Company ”) (ASX: SBM) provides the following preliminary update on gold sales, gold production, cash and liquid investments for the June 2025 quarter (“ Q4 Jun FY25 ”).

June 2025 Quarterly Preliminary Results

• Gold sales for the Q4 Jun FY25 totalled 15,564 ounces (up 34% on Q3 Mar FY25) at an average sale price of A$5,117 per ounce, including a further 853 ounces sold from clean-up gold recovery work at Touquoy.

• Gold production for Q4 Jun FY25 totalled 14,620 ounces (up 4% on Q3 Mar FY25). Gold production for H2 FY25 of 28,673 ounces was up 27% on H1 FY25.

• Capital expenditure and calculation of All-in-Sustaining Costs (AISC) for the quarter will be complete when the Company’s quarterly report is issued in late July 2025.

• Gold production for FY25 of 51,168 ounces was within revised guidance of 50,000 to 52,000 ounces.

• Strong safety performance continued, with Total Recordable Injury Frequency Rate reduced from 1.7 at the end of Q3 Mar FY25 to 1.1 at the end of Q4 Jun FY25.

The gold production outcome was achieved, despite yet another high rainfall event of >60 mm in a single 60 minute period in late June. Just over 3.5 metres of rain fell over the 12 months of FY25. This elevated rainfall came at a time where oxide operations were progressing beyond self draining mining areas to the mining of open pits where dewatering is required.

Cash, bullion and listed investments

Cash, gold on hand and listed investments at the end of Q4 June FY25 totalled A$186 million, comprising A$68 million in unrestricted cash, A$4 million in gold doré, A$89 million in restricted cash and listed investments valued at A$25 million.

The Company continues to have no bank debt and no hedging.

The Company anticipates issuing its Quarterly Report in the last week of July 2025.

Authorised by

Board of Directors

For more information

Investor Relations

David Cotterell General Manager Business Development & Investor Relations

info@stbarbara.com.au

Media Relations

Paul Ryan Sodali & Co. M: +61 409 296 511

T: +61 3 8660 1959 M: +61 447 644 648

St Barbara Limited ABN 36 009 165 066 Level 19, 58 Mounts Bay Road, Perth WA 6000 PO Box 1161, West Perth WA 6872

ASX: SBM

T +61 8 9476 5555 stbarbara.com.au