GRST
2023 Earthshot Prize Winner - we make lithium-ion batteries PFAS-free, low CO2 footprint, and easily recyclable in water
21 employees · est. 2015 · Hong Kong S.a.r.
LOHUM
Li-ion battery manufacturer and battery materials (cobalt, lithium, etc.) recycler enabling a circular supply chain.
436 employees · est. 2017 · India
GRST is the older company (2015 vs 2017); LOHUM is the larger of the two.
Side-by-Side Comparison
| Metric | GRST | LOHUM |
|---|---|---|
| Founded | ||
| Founded | 2015 older | 2017 |
| Headquarters | ||
| Headquarters | Hong Kong S.a.r. | India |
| Employees | ||
| Employees | 21 | 436 larger |
| Industry | ||
| Industry | Manufacturing, Energy Storage | Manufacturing, Sustainability, Automotive |
| Funding Stage | ||
| Funding Stage | Grant | Series B |
| Total Funding | ||
| Total Funding | $1.00M | $4.53B |
| Funding Rounds | ||
| Funding Rounds | 1 | 3 |
| Services | ||
| Services | Not tracked yet | Battery Materials Recycling, Battery Repurposing Solutions, Residual Value Assessment of Batteries, EPR Compliance Services, Logistics and Traceability Solutions for Battery Recycling |
| Target Customers | ||
| Target Customers | Not tracked yet | OEMs, Dealerships, Battery Manufacturers, Financiers, Energy Storage Sector |
| Taxonomy | ||
| Taxonomy | Lithium-ion Battery, Battery Technology, Recycling, Clean Energy, Sustainable Technology, R&D, Green Technology, Water-based Technology, Innovation, Giga-scale Operations, Patented Technology, Chemical-free Manufacturing, Energy Storage | Lithium-ion Battery Manufacturing, Proprietary Battery Technology, Battery Fabrication Techniques, Battery Reuse Technology, Second Life Battery Solutions, Cell Testing, Circular Supply Chain, Battery Material Recycling, Cobalt Recovery, Lithium Recovery, Nickel Recovery, Graphite Recovery, Value Material Recovery, Advanced Battery Mobility, Energy Solutions |
| Website | ||
| Website | grst.com | lohum.com |
About GRST
GRST (Green Renewable Sustainable Technology) is a Hong Kong-based lithium-ion battery technology company, founded in 2015, specializing in water-based manufacturing and recycling of batteries. The company's patented WATMAR³ technology has garnered awards and operates at giga-scale, replacing toxic...
About LOHUM
LOHUM, founded in 2017 and headquartered in India, positions itself at the forefront of the Manufacturing, Sustainability, and Automotive industries. With its slogan, "Li-ion battery manufacturer and battery materials (cobalt, lithium, etc.) recycler enabling a circular supply chain," LOHUM focuses...
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Funding, hiring, leadership and stack changes at GRST and LOHUM — by email.
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Compiled from the BounceWatch company index. We last looked at GRST on 12 Sep 2024, and LOHUM on 19 Aug 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.