Resource and reserve estimation across every critical mineral commodity, with QP and CP sign-off for public disclosure and transaction support. Geological modelling, drill programme design and supervision, and QA/QC audit. Geometallurgical modelling to de-risk process design before capital is committed, rather than after recovery falls short.

Open pit and underground design, scheduling and optimisation, with trade-off studies that balance capital intensity, operating cost and ESG constraints. Selective mining strategies for complex orebodies, from lithium pegmatites to nickel laterites. Equipment selection, production planning and grade control for high-value battery materials.

Testwork programme design and management through SLR's own laboratories in Cornwall, UK and Colorado, USA, covering flotation, heap leach, HPAL and hydrometallurgical circuits. Flowsheet development from bench through pilot scale. Review of direct lithium extraction and downstream refining technologies, including solvent extraction, through our internal teams and partner network.

GISTM-compliant tailings design from project inception, which avoids the cost of retrofitting a facility later. TSF siting, design, construction oversight and Engineer of Record services through operations. Site-wide water balance and water management, hydrogeological modelling and water treatment. Geochemical characterisation and ARD/ML prediction, which for sulphide nickel, cobalt and copper projects often decides the closure liability.

Integrated study management from scoping and PEA through pre-feasibility to definitive feasibility, with a single point of coordination across geology, mining, processing, infrastructure and environmental workstreams. We structure deliverables to meet lender requirements and permitting timelines, and to answer investor questions before they are asked.

Granular Scope 3 analysis across battery and critical mineral supply chains, identifying hotspots by material, processing stage and individual supplier. We move past generic emission factors to data a manufacturer can act on, and we support OEMs engaging Tier 2 and Tier 3 suppliers on renewable electricity programmes, PPA structuring and realistic reduction pathways.

Honest assessment of energy options for remote sites: solar, wind, hydro, LNG and small modular reactors, with hybrid microgrid optimisation and storage sizing. Most critical mineral deposits sit where the grid is weak or absent, and the gap between a decarbonisation target and what can actually be built on site is where projects lose time and money.

Carbon footprint declaration and performance class assessment under the EU Battery Regulation, and due diligence across the full supply chain. Scope 1, 2 and 3 quantification for mining operations, corporate and product carbon footprints, and reporting aligned to the GHG Protocol and CDP, with baseline setting and progress tracking against net zero commitments.

End-to-end visibility from mine to market, identifying smelters, refiners and upstream actors across multi-tier supply chains. Our VINE platform supports dynamic mapping, risk flagging and ongoing monitoring, so manufacturers know where their material originates and can show it.

OECD-aligned due diligence programmes for minerals sourcing, with risk identification, on-site audit and corrective action planning. Support for compliance with the EU Battery Regulation, the EU Critical Raw Materials Act, SEC conflict minerals rules and emerging responsible sourcing requirements. Gap analysis and assurance readiness for RMI, IRMA, TSM and the Copper Mark.

Human rights risk assessment across operations and supply chains, salient issue identification, rights-holder engagement and UNGP-aligned disclosure. Through the Better Mining programme we have people on the ground in the DRC, Rwanda and Uganda, working on formalisation and continuous improvement at artisanal and small-scale sites, and connecting responsibly produced ASM material into global supply chains.