Minerals 260 Limited (ASX: MI6) has appointed Mark Muller as General Manager of Geology. The company announced the appointment on 5 March 2026. The decision strengthens the technical leadership team as Minerals 260 advances development at the Bullabulling Gold Project in Western Australia.
Aerial view of the Bullabulling Gold Project in Western Australia, where Minerals 260 is advancing exploration and resource development. [Minerals 260]
The Company stated that Muller will oversee exploration and geological operations at Bullabulling. His role focuses on expanding the resource base and supporting development planning. The project remains one of the Company’s key assets and sits near major mining districts in the Eastern Goldfields.
Managing Director Luke McFadyen confirmed that the appointment forms part of a broader strategy to build technical capacity. Minerals 260 plans to accelerate exploration work while progressing the project toward future production stages.
The Company emphasised that experienced geological leadership remains critical for resource growth. It expects Muller to guide exploration programs and resource evaluation as development work continues.
Mark Muller Brings More Than 30 Years of Geological Experience
Mark Muller brings more than three decades of experience in mineral exploration and mine geology. His career covers gold and nickel exploration, resource definition and operational geology.
Before joining Minerals 260, Muller spent nearly 20 years with Mincor Resources NL. He served most recently as Group Mine Geologist – Operations. During that period, he worked on the Kambalda nickel operations and supported resource development activities.
Earlier in his career, Muller worked in exploration roles with several major mining Companies. These included Barrick Gold of Australia, Homestake Gold, Sons of Gwalia and Ballarat Consolidated Gold. His work took place across Western Australia, the Northern Territory and Victoria.
Industry recognition has also marked his career. In 2020, Muller received the AMEC Prospector of the Year Award as a co-recipient. The award recognised the Cassini nickel discovery and its contribution to Australian mineral exploration.
Technical Expertise Supports Minerals 260 Growth Strategy
Minerals 260 expects Muller’s experience to support the Company’s exploration strategy. His background includes discovery programs, mine geology and resource evaluation. These skills align with the Company’s plans for the Bullabulling Gold Project.
Managing Director Luke McFadyen welcomed Muller to the Company and highlighted his industry reputation. McFadyen said the Company values Muller’s experience across gold and nickel systems.
McFadyen also noted Muller’s record in exploration and resource development. He stated that the appointment strengthens the Company’s technical team. The leadership team will focus on advancing Bullabulling through further exploration and project studies.
Minerals 260 continues to expand its operational capabilities. The Company believes experienced technical leadership will help guide exploration decisions and resource growth.
Bullabulling Gold Project Remains Central to Development Plans
The Bullabulling Gold Project stands at the centre of Minerals 260’s development plans. The project sits about 25 kilometres south-west of Coolgardie in Western Australia’s Eastern Goldfields region.
Map showing the location of the Bullabulling Gold Project in the Eastern Goldfields region of Western Australia. [Minerals260]
The site holds a JORC 2012 Mineral Resource Estimate of 130 million tonnes at 1.0 grams per tonne gold. This estimate contains approximately 4.5 million ounces of gold.
Minerals 260 controls a largely contiguous tenement package covering 587 square kilometres. The project also sits on granted mining leases, which provide a strong foundation for future development.
The Company views Bullabulling as a potential open-pit mining operation. Exploration programs aim to expand the resource base while preparing the project for further development studies.
Resource Data Highlights Scale of Gold Deposits
The Bullabulling project includes several gold deposits that contribute to the overall resource estimate. Key deposits include Dicksons, Phoenix, Bacchus, Kraken and Gibraltar.
The Phoenix deposit currently represents the largest component of the resource. It holds a total of 57 million tonnes at approximately 1.0 grams per tonne gold. This deposit contains around 1.8 million ounces of gold.
The Bacchus deposit also contributes significantly to the resource base. It contains an estimated 46 million tonnes at roughly 1.1 grams per tonne gold. This deposit holds about 1.6 million ounces of gold.
Other deposits add further mineralisation across the project area. The Dicksons, Kraken and Gibraltar deposits provide additional resource potential. Together, these deposits contribute to the overall 4.5 million ounce estimate.
Minerals 260 reported that the resource estimate includes both indicated and inferred categories. The figures reflect data compiled as of December 2025.
Mineral Resource Domains Show Distribution of Gold
Geological data show that Bullabulling hosts mineralisation across several domains. These include oxide, transitional and fresh rock zones. Each domain contributes to the total resource estimate.
The fresh rock domain holds the largest portion of gold mineralisation. It contains approximately 104 million tonnes at about 1.1 grams per tonne of gold. This section accounts for around 3.6 million ounces of gold.
The transitional domain also holds significant mineral resources. It contains about 26 million tonnes at roughly 1.0 grams per tonne gold. This portion contributes around 830,000 ounces of gold.
The oxide domain sits near the surface and contains smaller but accessible resources. It holds approximately 4.6 million tonnes at about 0.94 grams per tonne of gold. This section includes roughly 140,000 ounces of gold.
These domains help guide exploration and development planning. Geological teams use this information to understand deposit structure and resource distribution.
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Leadership Appointment Aligns With Project Development Timeline
Minerals 260 confirmed that Muller’s appointment aligns with the Company’s next stage of project advancement. Exploration teams continue work to expand resources and refine geological models.
The Company stated that Bullabulling remains a priority project. It expects ongoing geological analysis and exploration programs to support future development decisions.
Muller will lead geological teams responsible for resource evaluation and exploration planning. His role also includes guiding technical programs that aim to grow the project’s gold inventory.
Minerals 260 authorised the announcement through its board of directors. The Company indicated that further exploration updates may follow as work continues across the Bullabulling Gold Project.
