6 Sheffield Resources Limited Annual Report 2025 KMS is committed to supporting the Kimberley community through employment, community engagement, and local and Aboriginal business opportunities. During the 2025 financial year, KMS committed over $60 million amongst over 100 local West Kimberley based businesses, on a range of products and services from civil contracting, fuel supplies, mobile plant hire, and office services. The vast majority was committed with Aboriginal owned businesses, of which over $12 million was contracted with Joombarnburu Traditional Owner businesses, exceeding initial targets of $10 million per year by 2031. During the 2025 financial year, excellent progress was made in achieving Aboriginal employment targets across the KMS business. As at 30 June 2025, KMS employed a workforce comprising over 30% Aboriginal employees, and a female workforce population of 23% within its overall direct workforce of 102 people. 85% of employees are permanent residents of Broome, Derby and surrounding West Kimberley communities, reflecting the KMS commitment to a locally based workforce. Thunderbird Operational and Financial Performance Total ore mined for the reporting period was 10.4 million tonnes, with concentrate production totalling 741,826 tonnes for the reporting period. Dry Mining Unit (DMU) operating performance continues to achieve an annualised mining rate between 10Mt to 12Mt per annum, with the maximum expected throughput rate of up to 16mpta by the end of the 2026 financial year. For the reporting period, the Heavy Mineral (HM) grade of the feed to the process plant (Rougher Head Feed or RHF) was 20.1% compared with 19.7% expected from the Mineral Resource block model. Rougher Head Feed volumes achieved were approximately 75% of basis of design per tonne of ore mined, driven by observed oversize material, and had reached approximately 80% of the Review of Operations Thunderbird Process Plant basis of design by the end of the year. The process plant is performing strongly, with TiO2 and ZrO2 recovery consistently at or above basis of design. Product shipments totalled 757,592 dry metric tonnes for the reporting period, including a record 226,940 tonnes shipped during the March 2025 quarter. Whilst subdued zircon concentrate markets were experienced during the reporting period, KMS has secured government approvals for a wide range of approved offtake customers during the financial year, broadening the customer base, with continued healthy demand for zircon concentrate. A Business Improvement Initiative to identify and implement opportunities to reduce costs and increase productivity was launched during the reporting period. This resulted in several cost saving initiatives being identified, including a reduction in KMS workforce requirements which regrettably resulted in approximately
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