North America Gets Its First Lithium Refinery

Mangrove Lithium's Delta plant is North America's first electrochemical lithium refinery, turning Canadian resources into EV-ready materials

4 May 2026

For years, Canada sat on one of the world's most valuable lithium reserves without the means to do much with it. That changed this week. Ottawa has officially opened North America's first commercial electrochemical lithium refinery in Delta, British Columbia, operated by Mangrove Lithium. Domestic lithium processing is no longer a national ambition. It's a fact.

Delta's facility runs on a proprietary electrochemical process flexible enough to handle different feedstocks, producing battery-grade lithium hydroxide and lithium carbonate. At current capacity, it outputs 1,000 tonnes of lithium hydroxide per year, enough to power batteries for roughly 25,000 electric vehicles. Modest by global standards, perhaps. But the real achievement isn't tonnage; it's proof of concept, a Canadian-developed refining technology operating at commercial scale on home soil.

Financing behind it reflects how seriously governments and investors are taking the battery supply chain race. Canada Growth Fund committed up to US$65 million as part of a broader US$85 million deal, with BMW i Ventures and Breakthrough Energy Ventures participating alongside. Ottawa added up to C$21.9 million through its Critical Minerals Research, Development and Demonstration program. Sovereign capital, automotive money, and clean-tech venture funding all at the same table signals something beyond routine infrastructure investment.

Canada holds an estimated 6.5 million tonnes of lithium resources and ranks as seventh-largest producer globally. Yet until now, it lacked refining infrastructure to convert raw material into high-purity compounds battery manufacturers actually need. Industry observers have called this the "missing middle" in Canada's critical minerals chain. Delta fills it.

Mangrove Lithium is already planning a larger facility in Eastern Canada targeting 20,000 tonnes of lithium hydroxide annually, enough for approximately 500,000 EVs per year. As Western governments scramble to build sovereign battery supply chains, Canada has staked its claim, not just as a source of raw lithium, but as a nation that can refine and deliver exactly what a surging global EV industry needs.