— Critical Minerals. On-Site.

Advanced Solutions for the Lithium Battery Market

Modular extraction plants that process mining residues and industrial by-products into battery-grade lithium and rare earths—engineered to your site, your feedstock, and your schedule.

/ What We Deliver

From Residue Stream to Battery-Grade Output

Modular Extraction Plants

Full Critical Minerals Value Chain

Supply Chain Security by Design

Skid-mounted, scalable systems built for your site. Deploy on-site or near-site without waiting on greenfield infrastructure—process engineering scoped to your mineral stream.

Lithium extraction, rare earth processing, advanced materials refining, and consulting—every stage of the value chain available as a single integrated engagement.

Residue reprocessing and waste-to-value recovery reduce dependence on primary ore. Localized, efficient refining built around your operation's actual constraints.

Close-up of a modular process control panel inside an extraction plant, amber indicator lights reflecting off brushed steel surfaces, pipes and valve assemblies in the background, tight industrial framing with no people present
Close-up of a modular process control panel inside an extraction plant, amber indicator lights reflecting off brushed steel surfaces, pipes and valve assemblies in the background, tight industrial framing with no people present
+ Process Engineering

Industrial By-Products Carry Value. We Recover It.

Mining residues and industrial waste streams contain lithium and rare earth concentrations that conventional processing leaves behind. AB Croll's modular systems extract and refine those materials on-site.

Scalable systems mean you commission what the site demands—no oversized capital commitment, no decade-long construction horizon. Output meets battery-grade specifications.

Your Residues Are a Feedstock. Let's Engineer the Plant.

Tell us your site, your mineral stream, and your timeline. Our engineers scope the modular deployment that fits your operation—not a generic proposal.