Company: GROY-WT
Filing Date: 2025-12-08
Form Type: 424B5
Source: 0001493152-25-026680
Chunk: 20

Company: Gold Royalty Corp.
Filing Date: 2025-12-08
Form: 424B5
Chunk 20
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 referenced herein as filed by BHP with the Australian Securities Exchange.

BHP has prepared its publicly available disclosures, including resource and reserve estimates relating to Pedra Branca, in accordance with the requirements applicable to companies listed on the Australian Securities Exchange and JORC. JORC differs from NI 43-101 and SK1300. The disclosure herein includes information regarding resource and reserve estimates and other information prepared and disclosed by BHP, which we have included pursuant to Item 1304 of SK1300 as such information was prepared and disclosed by BHP, prior to our acquisition of an interest in Pedra Branca. We are not treating such information as a current estimate of mineral resources or mineral reserves under SK1300 and note that a qualified person of the Company has not done sufficient work to classify the estimate as such under SK1300.

See also “ Cautionary Note Regarding Mineral Reserves and Mineral Estimates”.

Project Summary

Each of the Pedra Branca mine and Antas North mine are a part of the Carajás East Operation, owned by BHP. Ore containing copper and gold is mined from the Pedra Branca underground mine and processed at the processing facilities located at the Antas mine that supports the Carajás East Hub in Brazil. Mining at the Antas open pit was completed in June 2021 and it is transitioning into the first hub at Carajás East. Its existing processing plant will continue to be used to process ore from new satellite mines, including Pedra Branca. As of 2024, Antas North open pit is used as a tailings storage facility to support Carajás East hub operations.

The Pedra Branca mine is located in Água Azul do Norte, which is approximately 160 km from Marabá and 900 km from Belém in the state of Pará, Brazil. Electricity is supplied to the mine via a 5 MW transmission line. Material is transported from Pedra Branca and is processed at the Antas North plant, located in the municipality of Curionópolis, Brazil. The plant has been operating and depositing tailings into a nearby exhausted open pit.

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The mine consists of an iron oxide copper gold deposit. High-grade zones of semi-massive and breccia mineralization with dominant chalcopyrite as the key copper-bearing mineral.

The mine was acquired by OZ Minerals in 2018, which acquired the mine operator, Avanco Resources Limited, including projects in the Caraj