Significant new drill targets defined at the Bronze Fox Copper-Gold Project, Southern Mongolia

Orbminco Limited (ASX: OB1) (“Orbminco”, “the Company”), is pleased to announce results of recent trench sampling at its Bronze Fox Project located in the Southern Gobi Copper-Gold belt of Mongolia.

Highlights

• Sampling of an historic trench (Figure 1) at the Company’s Bronze Fox Project in Mongolia has returned high-grade copper-gold results on the western margin of the West Kasulu resource¹. Better intersects include:
  • 17m of 0.5% Cu and 0.34g/t Au including 6m of 1.0 % Cu and 0.6g/t Au
  • 4m @ 0.6% Cu and 0.2g/t Au
• The trench remains largely unsampled (Table 1) with only visible mineralisation sampled to date
• The West Kasulu resource is open to the west, beneath shallow cover, where a review of an Induced Polaristion (IP) survey completed in 2018 has defined a number of strong, untested chargeability anomalies²
• Further IP surveying and geological mapping will be completed across the interpreted western extension of the West Kasulu resource to prioritise targets for drilling in Q2 2025
• Rock chip sampling also indicates that mineralisation extends to the northwest with numerous >0.5% Cu values recorded (Figure 1).
• IP surveys will also be completed at the Shuteen North target (Figure 2) ahead of a proposed maiden drilling program in Q2 2025 seeking to confirm the discovery of a new, and third, intrusive complex at the Bronze Fox project, which is interpreted to be related to the extensive Shuteen lithocap

Managing Director, Ralf Kriege, commented:

“The new trench results, coupled with drilling results from the 2024 drilling program, including 26m at 0.91% CuEq from 14 in hole F111, and review of existing chargeability anomalies supports an extension of existing geophysical coverage and a proposed high priority drilling program to better understand the higher-grade potential of the open western strike of the Bronze Fox Intrusive Complex.

The Shuteen North target has the potential to be the third intrusive complex at Bronze Fox and is a compelling, near surface and new large-scale target interpreted to be associated with the Shuteen lithocap, the largest lithocap in the Southern Gobi. The importance of this conceptual geological setting is significant given the lithocap at the Oyu Tolgoi project was an important early-stage exploration marker.

Preparations are taking place to undertake geophysical surveys and surface field activities early in the next quarter, to refine existing and generate new targets ahead of drilling at both the western extension of the Bronze Fox Intrusive Complex and at the Shuteen North Intrusive Complex.”

Exploration Update

The trench sampling took place in November 2024 during Orbminco’s maiden drill campaign and provides strong encouragement that the West Kasulu resource continues westward beneath shallow cover (Figure 1) with potentially higher copper and gold grades. This interpretation is further supported by 2024 drill hole F111, which returned 26m at 0.91% CuEq from 14m, including 2m at 8.29% CuEq from 24m (see OB1 ASX announcement from 14 January 2025 for further details ³).

A subsequent review of an IP geophysical survey completed by Joint Venture partner Kincora Copper Limited (Kincora) at West Kasulu in 2018², has also identified a number of significant and untested chargeable IP anomalies which will be targeted by drilling in 2025. The IP surveying along with geological mapping will be extended to the west prior to the drilling to determine the potential for further extensions to the resource, higher grade zones and open pit potential.

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