Tersa Critical Minerals is a Canadian cleantech company pioneering a carbon-neutral biotech platform to remediate toxic mining waste while recovering valuable metals. Its patented TersaClean system uses microbial fuel cells and related bioprocessing to neutralize acid rock drainage, remove toxic metals from mine-impacted water, and precipitate/recover metals (e.g., copper, nickel, zinc, cobalt and more) as usable outputs. TersaClean reduces long-term tailings liabilities while creating new economic value from waste streams. TersaClean can also be deployed as a pre-treatment step to selectively remove contaminant metals and impurities from brines or process waters prior to a downstream direct lithium extraction (DLE) process, improving DLE performance and product purity.