Technical Study
Lion Rock Commences Metallurgical Testing at Past-Producing Volney Critical Minerals Project, South Dakota
Lion Rock advances Volney metallurgy with phase 2 drilling and a capital raise looming over tight liquidity.

Executive Summary
- Lion Rock Resources has initiated a metallurgical and mineralogical testing program at its Volney Project in South Dakota.
- The program utilizes large bulk samples (<200 kg) from exposed pegmatite surfaces to evaluate concentrate grades, recovery rates, and optimal processing pathways (on-site, off-site, or direct shipping).
- Testing methodologies include heavy liquid separation, gravity separation, preliminary flotation, and magnetic separation to target spodumene, cassiterite, and tantalum-bearing minerals.
- Results will directly inform the prioritization of Phase 2 regional drilling planned for later in 2026.
- The project leverages existing infrastructure (all-season road, grid power, water, previously used concentrator) and proximity to US rail, supporting a potential rapid development timeline.
Material Impact
- The commencement of metallurgical testing is a logical, expected progression following the successful Phase 1 drilling that confirmed high-grade lithium, tin, tantalum, and gold mineralization.
- It does not represent a material, market-moving event on its own, as processing studies are standard pre-feasibility steps for past-producing assets.
- The news reinforces the company's development timeline but lacks the surprise element required for a material positive rating. It is a routine operational update that validates the technical feasibility of extracting the identified critical minerals.
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Company Overview
- Lion Rock Resources is a pre-revenue exploration company focused on the Volney Project in the Black Hills of South Dakota.
- The Volney Project is a past-producing asset hosting a lithium-tin-tantalum (LCT) pegmatite system and a newly discovered gold system.
- Historic production included spodumene concentrate (up to 6.3% Li2O), tin concentrate (up to 62.5% Sn), and tantalite concentrate (up to 57% Ta2O5).
- The property features private land ownership, existing infrastructure, and shallow mineralization suitable for low-cost open-pit mining.
- No NI 43-101 resources or reserves have been declared to date.
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Jun 22, 2026 · 07:21