Arcadia Minerals says its proposed partnership with Hong Kong Xinhai Mining Services Limited on the Swanson Tantalum Project has paused after the 45-day exclusivity period lapsed, with Xinhai requesting further clarity on mining costs before making a final decision.
The Chinese mining services group has been reviewing the project under a binding term sheet but indicated that its assessment remains incomplete, noting that it intends to obtain expert advice on cost assumptions before determining whether to proceed.
Arcadia said it has provided the required technical documentation and is now awaiting Xinhai’s position on advancing negotiations toward a definitive agreement.
The delay introduces uncertainty into what had been shaping up to be a pivotal transaction for the company.
Under the binding term sheet, Xinhai would construct and commission a gravimetric processing plant at Mining Licence 223, with a capacity aligned with or exceeding that outlined in the 2023 definitive feasibility study.
The agreement also covered exploration across EPL 5047, targeting mafic and ultramafic mineralisation as well as lithium and tantalum-bearing pegmatites.
The proposed partnership was designed to shift Arcadia from exploration into production, while limiting upfront capital requirements and reducing dilution across its broader Namibian asset base.
At the centre of the strategy is the Swanson project, where Arcadia is positioning itself as a future supplier of tantalum concentrate from what it describes as an ethical, non-conflict jurisdiction.
Tantalum remains a critical mineral used in high-value industries including defence electronics, aerospace systems, semiconductor manufacturing and medical devices.
The EPL 5047 licence area provides additional upside. It hosts multiple known pegmatites, and further exploration could provide additional feedstock to enhance plant throughput or extend mine life beyond the parameters defined in the 2023 study.
Hongkong Xinhai Mining Services Limited is the Hong Kong arm of Shandong Xinhai Mining Technology & Equipment Inc., a global mining services provider with experience across more than 2,500 mines and over 600 EPC+M+O projects in more than 100 countries.
The structure of the proposed deal aligns both parties. Upon execution of a definitive agreement, Xinhai would take a 5% equity stake in Arcadia through a strategic placement priced at A$0.036 per CDI.
The agreement also includes performance-based incentives, with Xinhai eligible to earn a further 10% interest through options linked to Stage 2 and Stage 3 milestones, with exercise prices of A$0.08 and A$0.12 per CDI respectively.
Arcadia would be free carried at Swanson if Xinhai elects to expand the plant or undertake further exploration, and free carried through to completion of a definitive feasibility study across its lithium, tantalum and base metals projects on EPL 5047.
The agreement followed a competitive offtake and funding process undertaken by Arcadia during 2025, which culminated in Xinhai securing exclusivity through a US$50,000 fee and a due diligence process that included a site visit.
In parallel, Arcadia secured firm commitments to raise A$750,000 through a placement priced at A$0.03 per CDI, providing additional working capital as it advances its Namibian asset portfolio.
Beyond Swanson, the company continues to assess further farm-in and joint venture opportunities, including recent transactions over the Karibib copper-gold project, while also evaluating acquisitions that could complement its focus on gold and critical minerals.
With the exclusivity period now expired and the review still ongoing, the immediate focus shifts to whether Xinhai elects to proceed.
The outcome will determine whether Arcadia can convert its Swanson project from a development concept into a producing tantalum operation.
