Cobalt Blue has cleared a key technical hurdle for its Kwinana refinery by confirming cobalt sulphate meets strict purity standards, while forging a US consortium to process polymetallic nodules and progressing feasibility studies for its Broken Hill cobalt mine.
- Kwinana cobalt sulphate meets stringent pCAM specifications
- Consortium formed with Glomar Minerals for US nodule processing
- Preliminary feasibility study underway for Broken Hill Cobalt Project
- CSIRO collaboration targets graphite recovery from battery black mass
- Cobalt market tightens amid DRC export quotas and rising demand
Kwinana Refinery Nears Final Investment Decision
Cobalt Blue Holdings Limited (ASX:COB) has crossed a critical milestone in its Kwinana Cobalt Refinery development with cobalt sulphate samples produced at its Broken Hill Technology Centre (BHTC) meeting stringent trace-metal purity and physical specifications demanded by potential buyers. This confirmation is a vital step toward securing binding offtake agreements and advancing to a Final Investment Decision (FID) for the refinery in Western Australia.
The refinery, designed to produce high-purity cobalt sulphate for lithium-ion batteries and cobalt metal for industrial uses, is progressing under a pre-FID consortium agreement with Iwatani Australia Pty Limited. The company has received non-binding letters of intent covering about 70% of the refinery's initial 3,000 tonnes per annum capacity, including Iwatani’s 30% share, signaling strong market interest. Meanwhile, feedstock supply discussions continue, supported by a three-year cobalt hydroxide supply contract with Glencore covering half of the refinery’s needs.
Additional sample production cycles are ongoing at BHTC to support offtake negotiations, demonstrating operational reliability and flowsheet robustness across various feedstocks including cobalt hydroxide, cobalt-nickel sulphides, and battery black mass. The company also lodged an Australian patent application for an integrated cobalt recovery process, reinforcing its competitive position.
US Consortium Targets Polymetallic Nodule Processing
In a strategic move to expand its footprint in critical minerals processing, Cobalt Blue entered a consortium agreement with Glomar Minerals LLC to develop a polymetallic nodule processing facility in the United States. This ~200,000 tonnes per annum plant aims to recover cobalt, manganese, nickel, copper, titanium, and rare earth elements from seabed nodules, aligning with US government priorities for secure critical mineral supply chains.
Cobalt Blue will lead the development and testing of the hydrometallurgical flowsheet at BHTC and undertake pre-feasibility and feasibility studies for the US facility. The consortium arrangement builds on the company’s patented technology and complements Glomar’s offshore mineral extraction capabilities. Site selection and permitting activities are advancing, with work programs expected to span 18-24 months pending funding.
This US collaboration follows Cobalt Blue’s earlier announcements confirming cobalt sulphate purity and refinery progress, reinforcing its growing role in sovereign critical mineral processing high-purity cobalt sulphate and US polymetallic nodule processing.
Broken Hill Cobalt Project Advances Feasibility and Permitting
Preparations are underway for a Preliminary Feasibility Study (PFS) on the Broken Hill Cobalt Project (BHCP), targeting completion in Q4 2026. The study aims to optimise project scale and capital intensity, focusing on a minimum 10-year starter case while preserving scalability. It will leverage extensive prior technical work, including pilot-scale processing and metallurgical testwork.
Environmental permitting is progressing through the NSW State Significant Development pathway, with the Environmental Impact Statement approximately 80% complete. Key technical studies on groundwater, biodiversity, cultural heritage, and other factors show no material approval constraints. Submission of the development application is contingent on satisfactory PFS outcomes.
Innovation at Broken Hill Technology Centre
The Broken Hill Technology Centre remains central to Cobalt Blue’s R&D efforts. Notably, the company is collaborating with CSIRO to develop technology for recovering battery-grade graphite from battery black mass, a waste product containing 20–40% graphite essential for lithium-ion battery anodes. This project, partly funded by CSIRO grants, aims to establish sovereign Australian capability in graphite recovery, adding a valuable revenue stream and supporting circular economy principles.
Halls Creek Project Silver Recovery Evaluation
At the Halls Creek Project, metallurgical testwork is ongoing to assess potential silver recovery from the Onedin deposit. Despite weather-related delays, core sampling is scheduled for completion in Q2 2026. The Stage 1 production target excludes silver, though the deposit contains an estimated 3.6 million ounces of silver over its life, presenting upside potential. The silver market remains supported by industrial demand linked to energy transition technologies and constrained supply dynamics.
Cobalt Market Tightens Amid Supply Constraints and Rising Demand
Cobalt prices continued recovering in Q1 2026 following a sharp rally in late 2025, driven by supply disruptions from the Democratic Republic of Congo’s export quota regime and accelerating demand from electric vehicles and energy storage sectors. The DRC’s quota system, limiting exports to under half of 2024 levels, has created a structural shortage, intensifying competition for cobalt supply.
Western governments are increasingly concerned about supply security, especially given Chinese dominance of DRC cobalt output. This geopolitical tension underpins initiatives like the Orion Critical Mineral Consortium’s proposed stake in Glencore’s DRC assets and highlights the strategic importance of developing sovereign refining capacity outside China, a niche Cobalt Blue is targeting with its Kwinana refinery and US consortium project.
Financial Position and Next Steps
Cobalt Blue reported a net cash outflow of A$982,000 from operating activities in the quarter and A$124,000 from investing activities, with cash reserves of A$5.6 million at quarter-end, sufficient to fund operations for over five quarters at current expenditure levels. Progress on financing remains linked to finalising binding offtake agreements.
As the company advances technical validation, environmental approvals, and commercial negotiations, key upcoming milestones include the completion of the Broken Hill PFS, conversion of letters of intent into binding offtake contracts, and further development of the US polymetallic nodule processing facility. These developments will be critical in determining the pace and scale of Cobalt Blue’s growth in the global critical minerals landscape.
Bottom Line?
Cobalt Blue’s technical validation and strategic partnerships position it well to capitalize on tightening cobalt markets, but final investment hinges on binding offtake agreements and regulatory approvals.
Questions in the middle?
- Will binding offtake agreements materialize to enable the Kwinana refinery FID?
- How will the US polymetallic nodule processing consortium navigate funding and permitting challenges?
- What impact will evolving DRC export policies have on cobalt supply and Cobalt Blue’s sourcing strategies?