NewsMiniMines signs a ₹350-crore MoU with the Government of Karnataka.

Meet Giga Mines

Every spent battery is a mine.

Lithium, cobalt, nickel and manganese, metals India imports, sit locked inside batteries at the end of their life.

  1. The problem
  2. Recovery
  3. HHM™
  4. The result
Placeholder imagery, AI-generated
01Backed by01 / 08

Who stands behind MiniMines

Incubated, validated and accredited by the institutions that test and fund clean technology in India.

  • IIM Bangalore NSRCELBusiness incubation partner
  • Ministry of Housing and Urban Affairs and AFDTop 30 cleantech startups of India
  • Oil India LimitedOIL-supported recycling company
  • FLCTDLow carbon emission technology
  • BEE and GEFTechnology validation
  • UNIDO and BEEFirst commercial order
  • BIRACAccreditation
  • IIT PalakkadBusiness accelerator and technology partner
  • IIT GuwahatiTechnology partner
  • IIT (ISM) DhanbadTechnology partner
  • IIT KanpurTechnology partner
  • Also recognisedWinner, 12th Chinnikrishnan Innovation AwardsRunner-up, Circular Economy Catalyst 2023ACT For Environment portfolio
02What brings you here?02 / 08
Complete the sentence. Pick the one that sounds like you.

I’m a battery producer, and I need to meet my EPR obligations.

A government-approved recycler for your obligations under the Battery Waste Management Rules.

ProducersImporters
Route 01 / 05Placeholder, AI-generated
03Technology03 / 08

Why manufacturers and producers choose HHM™

01

One process for every chemistry

A single method recycles all types of Li-ion battery, with no import dependency on raw materials.

02

Cost effective

A flexible model built on economies of scale and low-cost raw materials and solvents.

03

Closed loop

A closed-loop process with negligible waste generation.

04

Patented and licensable

Protected intellectual property, available to license.

04Materials04 / 08

Four elements, back in the supply chain

Colour is chemistry. In battery supply chains these metals usually travel as salts, each with its own natural colour: white lithium carbonate, red cobalt sulfate, green nickel sulfate, pale pink manganese sulfate.

Enquire about materials
Four small heaps of battery salts: white, red, green and pale pink
Li₂CO₃CoSO₄NiSO₄MnSO₄Placeholder, AI-generated
Periodic table · periods 1–4 · groups 1–18Coloured by the natural colour of each metal’s battery salt
3LiGroup 1 · Period 2

Lithium

Carries the charge. Lithium ions shuttle between anode and cathode in every Li-ion cell.

Atomic mass
6.94
Electrons
[He] 2s¹
Battery salt
Lithium carbonate
MiniMines form
[TBC]
Purity
[TBC]
27CoGroup 9 · Period 4

Cobalt

Stabilises the layered structure of NMC and LCO cathodes.

Atomic mass
58.933
Electrons
[Ar] 3d⁷ 4s²
Battery salt
Cobalt sulfate
MiniMines form
[TBC]
Purity
[TBC]
28NiGroup 10 · Period 4

Nickel

Raises energy density in NMC and NCA cathodes.

Atomic mass
58.693
Electrons
[Ar] 3d⁸ 4s²
Battery salt
Nickel sulfate
MiniMines form
[TBC]
Purity
[TBC]
25MnGroup 7 · Period 4

Manganese

Adds thermal stability and lowers cost in NMC and LMO cathodes.

Atomic mass
54.938
Electrons
[Ar] 3d⁵ 4s²
Battery salt
Manganese sulfate
MiniMines form
[TBC]
Purity
[TBC]

In pilotPermanent magnet recycling: extending the same approach to recover rare earth elements from end-of-life magnets.

Stainless steel process pipework and valves in an industrial plant
Process plant · KIADB DoddaballapurPlaceholder imagery · Photo: Ricardo Gomez Angel, Unsplash
05Sister brand05 / 08

Giga Mines: refining at scale

A critical-minerals refining complex for India, under a ₹350-crore MoU signed with the Government of Karnataka. It becomes our sister brand.

Visit Giga Mines
MoU value
₹350 cr
Partner
Government of Karnataka
Site and timeline
[TBC]
06#OneMoreEffort06 / 08

Every battery that reaches us is one more effort towards metals that are never mined twice. We work with industry and end users on recycling that lowers CO₂ emissions.

08Enquiry08 / 08

One form. The right team.

Tell us what you need and it goes straight to the people who handle it. We reply within [TBC] working days.

What do you need?
For example: Li-ion EV packs, about [quantity] tonnes a year
We use your details only to reply.