The founders position HHM-recovered material as a direct substitute for primary mined minerals in downstream cell manufacturing, not a low-grade intermediate
Decision Focus
India-based MiniMines has disclosed process and scale-up details for its patented Hybrid-Hydrometallurgy (HHM) technology, which its founders say recovers lithium, cobalt, nickel, and copper from end-of-life batteries across all major chemistries, producing output described as comparable to virgin mineral quality. The company is constructing a giga-scale critical mineral refining complex on 40 acres of Karnataka government-subsidized land, targeting 45,000 metric tonnes per annum of processing capacity by end of 2028. For Mining Operations Directors at lithium, cobalt, and nickel operations, this marks the clearest signal yet that above-ground supply infrastructure in emerging markets is maturing faster than most long-range mine-planning assumptions account for.
90-Second Brief
This week, miniMines operates a patented, zero-discharge battery recycling process it describes as chemistry-agnostic, working across NMC, LFP, LCO, and other lithium-ion formats from wristwatches to electric buses. The company holds financial backing from India’s Technology Development Board, Oil India, and UNIDO, the latter having evaluated the process and recognized it for low carbon intensity. The founders position HHM-recovered material as a direct substitute for primary mined minerals in downstream cell manufacturing, not a low-grade intermediate. That positioning is the operational signal worth examining carefully.
What Is Really Happening?
The story beneath the technology announcement is structural. India’s domestic EV and cell manufacturing sector — with active participants including Exide, Ola Energy, Nash Energy, and Ather Energy — is creating upstream demand for precursor cathode active material that currently runs through Chinese supply chains. MiniMines is positioning its recovered mineral output as domestic feedstock to close that loop without importing from either mines or Chinese refineries.
The government alignment reinforces this as coordinated policy, not isolated startup ambition. India’s Technology Development Board has extended financial support to the project, Karnataka state allocated 40 subsidized acres for the facility, and UNIDO awarded process-level recognition for carbon intensity. That combination of national financial support, international validation, and state-level land commitment points to a deliberate effort to build critical mineral supply capacity from the waste stream as a substitute for building it from the ground.
The company’s Extended Producer Responsibility position further insulates the feed stream. MiniMines operates as India’s first R4-category recycler providing EPR services, which means Indian battery OEMs are legally obligated to route end-of-life material into compliant channels — creating a mandated and growing feed stream structurally independent of market collection rates.
Why It Matters for Mining Operations Directors
The primary implication runs through price formation for lithium, cobalt, and nickel. If high-purity secondary material enters cell manufacturing supply chains at meaningful scale — and MiniMines is not alone globally in pursuing this — the addressable demand for primary mined mineral narrows at the margin. This is not a near-term threat to current production plans. It is a structural signal that life-of-mine price deck assumptions for the 2030–2040 window deserve a harder look.
The secondary implication is geographic and sits in the mid-chain. India’s explicit goal is reducing dependence on Chinese battery supply chains. A domestic recycler achieving high-purity output and landing government support does not merely compete with miners — it competes with the Chinese refineries that currently convert mined concentrate into battery-grade material. For operations exporting lithium or cobalt concentrate toward Asian refiners, the intermediary layer is being targeted for displacement.
There is also a process technology parallel. The HHM architecture — extraction, separation, and beneficiation in a closed-loop chemical sequence — shares methodological DNA with hydrometallurgical processing already operating at mine sites. If commercial-scale results hold, they represent a data point on what above-ground recovery economics can look like, and on the purity thresholds that secondary material can realistically achieve. That matters for anyone modeling future concentrate price premiums.
Forward View
Three fronts are worth tracking. First, whether MiniMines closes the pilot-to-commercial gap with the performance levels it claims in production, not just in process design. The CTO acknowledged in the source interview that each scale-up stage requires multi-step optimization across unit operations — a routine constraint in hydrometallurgy that can affect both throughput and purity consistency across varied feed chemistries.
Second, India’s Pre-CAM gap. The founders identify absence of domestic precursor cathode active material production as the remaining critical gap in India’s battery chain. If HHM-recovered minerals become domestic pCAM feedstock, the loop approaches completion — insulating Indian cell manufacturers from both mine-gate and refinery-gate price signals simultaneously.
Third, the LFP shift. The founders flag lithium iron phosphate chemistry as increasingly dominant in EV applications, and they are designing the next facility for LFP-dominant feed streams. LFP contains no cobalt, which restructures the recovered output mix. For cobalt operations specifically, a scaled LFP recycling sector would contribute no meaningful cobalt from that chemistry wave — meaning recycled supply would not significantly suppress cobalt prices from this direction. Nickel and lithium dynamics would differ.
What Is Still Uncertain
The recovery rate and purity claims originate from company statements in a media interview and have not been independently audited at commercial operating scale as of August 2026. UNIDO recognition covers carbon intensity, not throughput consistency or purity across all chemistries at production volume. The techno-economics — reagent costs, energy consumption, and feed acquisition costs at 45,000 MT/year — are not disclosed in publicly available material, making the cost-competitive position against primary supply genuinely unclear.
India’s domestic lithium resource base, which the founders describe as low-concentration relative to above-ground waste, remains at early-stage geological survey (G3 studies completed; G4 feasibility studies not yet done). Whether India ultimately relies on recycled supply, imported ore, or its own ground-based resources remains an open question that depends on exploration outcomes, policy sequencing, and commercial-scale recycling performance — all unresolved simultaneously.
One Question for Your Team
If a domestic high-purity secondary mineral source is operating at commercial scale in your export market by 2030, which price assumptions in your current life-of-mine plan carry the most exposure, and when was the last time they were stress-tested against a secondary supply scenario?
Sources
- Google — Zero waste, 99% purity: MiniMines pulls critical minerals from dead batteries (Link)
