Kolkata — Haldia Refining Works
Haldia, West Bengal facility: hydrometallurgical refinery converting black mass into battery-grade lithium, nickel, cobalt and manganese salts. Rated at 15,000 tonnes per annum and operating since 2020.
Annual capacity
15,000 TPA
Operating lines
3
Cities collected
0
In operation since
2020
About the Haldia, West Bengal facility
Haldia is a port and petrochemical town on the Hooghly estuary, with long experience of chemical handling and bulk shipping. The refining works opened in the Haldia Industrial Growth Centre in 2020 to give eastern India a hydrometallurgical outlet close to both industrial reagent supply and port access, so black mass produced in the east does not have to cross the country to be refined.
With 15,000 TPA of capacity, the works receives black mass rather than packs, drawing feed from eastern collection yards, integrated campuses and registered third-party processors. It turns that feed into battery-grade salts, and its port location supports shipping those products to cathode and cell makers as well as receiving permitted intermediates for further refining. Assay results are shared with consignors before settlement is finalised.
What arrives at the gate
What sets this site apart
Chemical-port setting
Located in an industrial town already used to handling acids, reagents and bulk shipments safely.
Eastern refining outlet
Shortens the journey for black mass produced in eastern India.
Certified batch output
Refined salts ship with analysis certificates and mass balance records.
What happens to material here
- 1
Feed assay & sampling
Incoming black mass is homogenised and assayed by ICP-OES for Li, Ni, Co, Mn, Cu, Al and fluoride before it is released to leach.
- 2
Sulphuric acid leaching
Two-stage leach at 60–85 °C with peroxide reductant dissolves cathode metals at 96–99% extraction efficiency.
- 3
Impurity removal
Iron, aluminium and copper are precipitated and filtered; graphite is recovered as a separate low-ash cake.
- 4
Solvent extraction trains
Sequential Co, Ni and Mn circuits with counter-current mixer-settlers deliver individual metal raffinates.
- 5
Crystallisation & drying
Nickel and cobalt sulphate hexahydrate plus lithium carbonate are crystallised to 99.5%+ battery grade and bagged under nitrogen.
- 6
Batch certification
Every batch ships with a certificate of analysis, mass balance and chain-of-custody record for EPR and IRA reporting.
Where material goes next
| Role | Facility | Distance |
|---|---|---|
| Cell Grading & Diagnostics | Indore — Pithampur Grading Plant | 1,279 km |
| Second-Life BESS Works | Nagpur — Butibori Second-Life Works | 956 km |
| Integrated Recovery Campus | Hyderabad — Zaheerabad Recovery Campus | 1,200 km |
Local rules
Battery Waste Management Rules 2022 (BWMR) · Central Pollution Control Board (CPCB) and State Pollution Control Boards
The works operates under West Bengal Pollution Control Board consent, with conditions on effluent treatment, air emissions and hazardous chemical storage. As a registered recycler it generates recovery evidence under the Battery Waste Management Rules 2022, and port shipments follow customs and applicable waste-shipment controls.
Before you book into Haldia, West Bengal
- Whole packs are not accepted; send them to a collection or grading site first.
- Black mass must arrive in sealed, labelled bulk bags with declared chemistry.
- Port-linked deliveries need documents lodged before arrival.
- Settlement is based on sampling and assay carried out at intake.
Damaged or defective packs are handled under a separate quarantine protocol — flag them in the form and the team calls you back the same day.
Haldia, West Bengal site: common questions
Does Haldia accept EV packs?
No. The works is a refinery and receives only black mass and cathode scrap.
Why is the refinery in Haldia?
Haldia's port and chemical infrastructure supports reagent supply and shipment of refined products to manufacturers.
What are the opening hours at Haldia, West Bengal?
Monday to Friday 08:00 – 20:00, Saturday 08:00 – 16:00. Sunday: emergency and damaged-pack intake only, by prior booking.
How do I book a collection into Haldia, West Bengal?
Use the booking button on this page with pack counts, chemistry and condition. The despatch desk confirms a window within one working day and ships UN-approved packaging before collection.