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Thunderbird Mineral Sands Project

The Thunderbird Mineral Sands Project is a 50/50 joint venture between Sheffield and YGH Australia Investment Pty Ltd (“Yansteel”), formed in 2021 to develop the Thunderbird Mineral Sands Project.  Thunderbird's large scale, high grade, high in-situ zircon content is globally significant. A Bankable Feasibility Study (BFS) completed in March 2022 confirmed Thunderbird as a world class mineral sands project based on a 36-year mine life and globally significant annual production of zircon and ilmenite.

The Thunderbird BFS is underpinned by one of the world's largest and highest grade, zircon and ilmenite-rich mineral sands ore reserves.  The ore reserve stands at 754Mt @ 11.0% HM (proven and probable) while the Mineral Resource contains 3.23 billion tonnes @ 6.9% HM, including a higher grade component of 1.05 million tonnes @ 12.2 % HM with very high in-situ zircon (0.93%) and ilmenite (3.3%) grades (Measured, Indicated and Inferred). These grades, its size, and surface outcropping nature, place Thunderbird in the top tier of HMS deposits globally.

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