What the site does
Tuas is Singapore's main industrial area and the site of its next-generation port. The diagnostics hub opened on Tuas South Avenue 6 in 2021 to grade packs from Singapore and South-East Asia, where electrification of taxis, buses and delivery fleets is gathering pace. Its catchment covers Singapore and nearby markets, including Malaysia and Indonesia, where consolidated loads are received under the required import permits.
At 18,000 TPA, the hub tests fleet and passenger packs and supports regional trading of graded modules. Singapore's role as a trading and logistics centre makes it a practical base for supplying reusable modules to buyers across the region. Packs that do not qualify for reuse are consolidated and sent for processing, and every tested pack receives a serial-level grade report.
What arrives at the gate
Feedstock at Tuas, Singapore reflects its catchment and plant type. Every consignment is weighed, photographed and logged against the originating manifest before it enters the process area.
- Singapore fleet packs
- Regional consolidated loads
- Commercial vehicle packs
- Storage batteries
The process, step by step
The 3 operating lines — module soh bench, eis diagnostics laboratory, ai optical cell grading — run the sequence below.
| Stage | What happens |
|---|---|
| Intake & safety triage | Packs are logged, thermally imaged and screened for swelling, coolant ingress or venting before entering the bench area. |
| Controlled de-energising | Residual energy is discharged to a safe state of charge with regenerative load banks and recorded per serial number. |
| Module-level capacity test | Full charge-discharge cycling at C/3 establishes usable capacity, internal resistance and cell-to-cell balance. |
| EIS fingerprinting | 1 mHz–10 kHz impedance sweeps separate SEI growth, lithium plating and contact resistance degradation modes. |
| AI optical inspection | Machine-vision inspection of busbars, welds and cell cans flags mechanical defects that block second-life reuse. |
| Grade assignment | Grade A (≥85% SOH), B (75–85%), C (65–75%) and D routes are assigned, with D-grade material released to refining. |
What sets the site apart
South-East Asian base. Grading capacity for the wider region.
Port access. Next to Singapore's Tuas port.
Module trading support. Graded modules can be supplied to regional buyers.
Where material goes next
Material that Tuas, Singapore does not finish on site moves to the nearest specialist facility in the network, keeping transport distances and dwell times down.
| Facility | Role | Distance |
|---|---|---|
| Zwickau — Saxony Second-Life Works | Second-Life BESS Works | 9,976 km |
| Ningde — Fujian Refining Base | Hydrometallurgical Refinery | 3,291 km |
Field note