Omeo Gold Project

The Omeo Gold Project is an advanced, high-grade gold project, located in north-east Victoria within one of Australia’s most historically productive gold regions, approximately five hours from Melbourne.

The project includes two tenement areas: Mt Wills (EL 6323 and MIN 4921), and Cassilis (EL 5504 and EL 5427). MIN 4921 is one of Victoria’s longest continuously granted mining licences, recently renewed for a further 20 years, providing Rokeby with long-term tenure certainty over the core resource area.

Mt Wills hosts the Sunnyside and Maude deposits, the project’s highest-priority exploration targets, situated along a 5.8km zone of under-explored mineralisation, which remains open along strike and at depth.

Sunnyside area carries a rich production history, with gold mining conducted continuously from the 1890s through to the post-war period, yielding in excess of 235,000 ounces at grades exceeding 18 g/t Au. This exceptional historical grade underpins the project’s high-grade character and points to the significant resource potential that systematic modern exploration is designed to unlock.

Across both tenement areas, Omeo is underpinned by a historical estimate of 2.4 Mt at 4.02 g/t Au for 320,000 ounces of gold, providing a strong foundation for resource definition and growth.

Mt Wills — Sunnyside

  • Historical estimate of 137,850 oz at 4.1g/t Au hosted across two main lodes, both open in all directions.
  • Substantial extensions remain untested, with the western lode tested over ~930m and the eastern lode over ~320m only.
  • The Democrat prospect, located ~220m south of the current resource, remains untested, representing strong exploration upside.
  • Focus on exploration targeting known high-grade mineralisation shoots, with results expected to underpin a JORC (2012) resource estimate.

Mt Wills — Maude

  • Historical estimate of 181,670 oz at 4.0g/t Au with mineralisation open in all directions.
  • Underground development opportunity with access via the No. 5 adit, open and accessible for 900m, requiring minimal work to be operational.
  • Planned extension of No 5 adit to 1,200m, enabling efficient year-round underground access, exploration platform and bulk sampling for metallurgical testing.

KEY TAKE-AWAYS

  • Historical Estimate of 2.4 Mt at 4.02g/t Au for 320,000 oz of gold, targeting 500,000oz to 1Moz.
  • Mineralisation open across the 5.8km strike length, including a 1.9km untested gap between deposits.
  • Omeo represents a rare opportunity in the current gold environment being a high-grade, development-stage asset.
  • Omeo to significantly grow the size and scale of the current Historical Mineral Resource Estimate, with a drill program underway at Sunnyside.
  • Strong stakeholder support including the government, with Non-Executive Chairman Tim Pallas bringing ~20 years of Victorian parliamentary experience.
  • 20-year mining licence renewal (MIN 4921) securing Rokeby’s long-term tenure over the Omeo project and supporting the Company’s strategy to advance exploration and drive resource growth.

MT WILLS HISTORICAL MINERAL RESOURCE ESTIMATE

Historical Resource Estimate and Classification.

Deposit Class Tonnes (kt) Au (g/t) Au (koz)
Maude Indicated 414 5.2 69
Inferred 999 3.5 112
Sunnyside Indicated 113 8.8 32
Inferred 930 3.5 106
Total Indicated 527 6.0 101
Inferred 1,929 3.5 218
Total 2,456 4.0 320

Cautionary Statement

The above Mineral Resource Estimate (Table 5) was prepared by PT Green Gold Technology for ABA Resources Pty Ltd and was published by ABA on 6 December 2019 as a JORC Code 2012 Mineral Resource Estimate. ABA Resources Pty Ltd was not an ASX-listed entity and the estimate was not originally reported through the ASX under Chapter 5 of the ASX Listing Rules. Rokeby has not yet completed sufficient independent review and verification of the underlying data, geological interpretation and estimation assumptions to adopt and report the estimate as a current Mineral Resource Estimate under ASX Listing Rule 5.8. Accordingly, the estimate is presented for background and project-context purposes only and should not presently be regarded as a Mineral Resource Estimate reported by Rokeby under the JORC Code 2012 and ASX Listing Rules.

Rokeby intends to review the underlying drilling database, geological interpretation, Mineral Resource model, estimation parameters, classification, density assumptions and reasonable prospects for eventual economic extraction to determine whether the estimate can be adopted and reported by Rokeby in accordance with the JORC Code 2012 and ASX Listing Rule 5.8.

Please refer to the announcement dated 24 April 2026 for further information on the acquisition of the Omeo Gold Project.