Low-Carbon
Oxide Production
from Waste

Low Technology Intro

LOW™ Technology

LOW™ technology integrates ARC with conventional hydrometallurgy to improve recoveries, reduce cost, waste and footprint. The first application of LOW is to turn Serpentine tailings into three low‑carbon products: high‑purity magnesium oxide (MgO), silica (SCM), and nickel‑cobalt concentrate (Ni/Co).

How It Works

Turning Waste into
Low-Carbon Oxides

Low-Carbon<br>Oxide Production<br>from Waste

Low-Carbon
Oxide Production
from Waste

Stage 1

We dissolve metals from the feedstock using regenerated acid at atmospheric pressure

Stage 2

Separate solids for use as sustainable construction materials

Stage 3

Recover valuable minerals

Stage 4

The leftover liquor is thermally split in the ARC, re-making acid and base that go back in the process

Why It Matters

LOW™ technology integrates ARC with conventional hydrometallurgy to improve recoveries, stabilize OPEX, increase profitability and reduce waste and footprint

Key benefits

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Multi-feedstock by design

Adapts across ores and residues - serpentine tailings, refractory Cu/Au, nickel laterites, hard-rock lithium, phosphates, uranium - by pairing our platform chemistry with ARC™ reagent regeneration

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Maximize Resource Recovery

Converts qualifying feeds into saleable products, neutralizing hazards where present and minimizing tailings generation

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Clean, low-carbon process

Less waste, water, and haulage; enables better carbon footprints and stronger sustainability performance - making permits and social license easier

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Bankable and Scalable

Built from mature hydromet unit ops with a proven ARC integration, delivering low-carbon products, faster permitting, and replicable deployments

A Scalable Technology, Adaptable to Several Critical Minerals

Exterra Mission

Validated at Hub Zero, our demonstration platform (2026). Commercialized at Hub I on a multicentury feedstock in Québec. Ready for future applications across commodities with performance‑aligned terms and a proven development path.