Ardea Resources Delays Kalgoorlie Nickel Project DFS Completion to Explore Optimization and Critical Minerals Potential

Government Endorsements and Strategic Importance of the Goongarrie Hub

During the June 2026 quarter, Ardea Resources secured unprecedented government support for the Kalgoorlie Nickel Project – Goongarrie Hub. The project was selected for the Australian Government Investor Front Door (IFD) pilot program, underscoring its national and global strategic importance given Australia's status as a leading nickel and cobalt supplier. This pilot designation aims to streamline regulatory processes and enhance coordinated government support across federal agencies.

Further validation came from the project's inclusion in the Australia-Japan joint statement on critical minerals collaboration, highlighting its role in strengthening resilient and diversified supply chains. Additionally, the Western Australian Department of Energy and Economic Diversification granted Lead Agency Status, facilitating coordinated state-level engagement. These recognitions collectively signal strong political backing, potentially expediting regulatory approvals and reducing uncertainties.

Extension of DFS Timeline and Focus on Value Optimization

Ardea Resources informed investors that the DFS Final Report for the Kalgoorlie Nickel Project – Goongarrie Hub will be completed after the initially scheduled 30 June 2026 date. The extension reflects the identification of numerous optimisation and value engineering opportunities deemed essential given the project's scale and strategic significance. CEO Andrew Penkethman emphasized that pursuing these enhancements is mandatory for maximizing project value.

The company confirmed that the DFS program’s core fundamentals, scope, and strategic positioning remain intact despite the timeline extension. A detailed market update outlining revised completion timelines and value enhancement strategies is anticipated before the end of October 2026. This deliberate extension aims to maximize project returns ahead of the Final Investment Decision (FID), rather than indicating any technical delays.

Initiation of Scandium and Critical Minerals Recovery Scoping Study

In the June 2026 quarter, Ardea commenced a sole-funded scoping study to explore recovery of scandium and other critical minerals from barren liquor waste streams generated during nickel and cobalt extraction. This initiative supplements the DFS base case focused on nickel and cobalt recovery. The barren liquor, a residual solution from the High-Pressure Acid Leach (HPAL) process, contains additional critical minerals potentially recoverable for commercial use.

This move aligns with broader market and policy trends emphasizing maximized mineral recovery and vertical integration. Scandium, valued in aerospace, electronics, and advanced manufacturing, could diversify the project’s market reach and improve returns. The study complements government priorities on critical minerals development and Australia's strategic role in global supply chains, as reflected in the Australia-Japan collaboration.

Financial Strength and Capital Funding

As of 30 June 2026, Ardea Resources reported a strong financial position with A$18.3 million cash on hand and zero debt, providing flexibility to fund the scandium scoping study and ongoing DFS activities without immediate capital raising. This cash position was supported by a successful Share Purchase Plan (SPP) raising A$340,000 at A$0.60 per share, matching the price of a concurrent A$5 million placement.

The DFS program is fully funded by the Japanese Consortium under a budget of A$98.5 million through the joint venture Kalgoorlie Nickel Pty Ltd (KNPL), jointly owned by Ardea and GH Nickel Pty Ltd – representing the consortium of Sumitomo Metal Mining Co. Ltd and Mitsubishi Development Pty Ltd. The consortium holds an initial 35% equity stake in KNPL, with an additional 15% equity interest contingent on a positive FID. This funding structure preserves Ardea’s cash reserves for future development or corporate needs.

Mineral Resource Overview and Multi-Deposit Development Plan

The Kalgoorlie Nickel Project contains Australia's largest nickel-cobalt mineral resource, with the Goongarrie Hub as the primary development focus. Located 70 kilometres northwest of Kalgoorlie-Boulder, the Goongarrie Hub includes the Goongarrie South and Big Four deposits, targeted for an initial 10-year development phase. Later phases plan to incorporate ore from Goongarrie Hill, Highway, and Siberia North deposits. These resources will supply feedstock for a planned High-Pressure Acid Leach (HPAL) processing facility at Goongarrie South.

The mineralisation predominantly consists of premium goethite-style ore extending over 25 kilometres of strike from Scotia Dam through Big Four, Goongarrie South, and Goongarrie Hill, with an additional 10 kilometres at Highway. All key deposits are on granted mining leases managed by the KNPL joint venture. While the focus remains on nickel-cobalt DFS, adjacent gold targets within proposed waste rock landforms and infrastructure zones, including a documented gold resource at Big Four, are under evaluation as part of mining studies.

Infrastructure Advantages Supporting Project Development

The Goongarrie Hub benefits from proximity to established infrastructure, including the Goldfields Highway, rail lines, fibre optic cables, and power networks. These assets reduce capital expenditure by negating the need for new transport and utility corridors. The Goldfields Gas Transmission pipeline, approximately 30 kilometres east, offers potential energy supply options.

Strategic access to Fremantle and Esperance ports via road and rail enhances export flexibility and mitigates logistics risks. The existing infrastructure footprint within granted mining leases further improves development economics. Proximity to Kalgoorlie-Boulder, a major regional centre, supports workforce availability and operational logistics.

DFS Progress and Environmental Approvals Advancement

During the June 2026 quarter, Ardea advanced multiple DFS workstreams, maintaining zero lost time injuries and prioritizing health and safety. Environmental baseline studies are nearing completion, with approvals documentation targeted for submission to the State Environmental Protection Authority and National EPA by December 2026, marking a key regulatory milestone.

Draft DFS chapters on Geology, Mineral Resources, Ore Reserves, and Mining were completed and independently reviewed. Updates incorporating borefield modelling and hydrogeological data refined water supply and pit dewatering plans. Additional DFS chapters are in progress, reflecting steady advancement toward regulatory submission.

Japanese Consortium Partnership and Equity Structure

The Kalgoorlie Nickel Project is jointly developed by Ardea Resources and a Japanese Consortium comprising Sumitomo Metal Mining Co. Ltd and Mitsubishi Development Pty Ltd via GH Nickel Pty Ltd. The joint venture, Kalgoorlie Nickel Pty Ltd (KNPL), reflects a strategic alliance combining Australian resource expertise with Japanese technical and market capabilities.

The consortium has earned a 35% equity interest through DFS funding, with a further 15% contingent on a positive FID, potentially totaling 50% ownership. This staged equity progression aligns incentives and ensures shared commitment to advancing the project. Full funding of the A$98.5 million DFS by the consortium preserves Ardea’s capital while leveraging partner expertise and market access, reducing commercialization risks.

Capital Structure and Shareholder Information

As of 30 June 2026, Ardea Resources holds A$18.3 million cash with no debt, supporting corporate and discretionary expenditures without immediate fundraising. The recent Share Purchase Plan raised A$340,000 at A$0.60 per share, consistent with a concurrent A$5 million placement, demonstrating pricing discipline and market confidence.

The company has 219.7 million shares outstanding, along with 4.5 million performance rights and 3.0 million options. This capital structure reflects historic equity financing and performance-based incentives. With the DFS fully funded by the consortium, future capital raises will likely focus on pre-development, working capital, or growth initiatives rather than feasibility study costs.

Upcoming Market Update and Investor Guidance

Ardea Resources plans to provide a comprehensive market update before the end of October 2026. This update is expected to include revised DFS completion timelines, details on value optimisation initiatives, preliminary results from the scandium and critical minerals scoping study, and potential updates to project economics and development schedules.

CEO Andrew Penkethman highlighted that these combined efforts foster strong cooperation among key stakeholders to accelerate development of this long-life, strategically significant asset. The project’s designation as "long-life" and "strategically significant" underscores its anticipated multi-decade operational horizon. The forthcoming October update represents a pivotal catalyst for investors.