Ocean Sciences has committed A$100,000 to a 12-month research program testing whether Sargassum-derived alginate can recover gold, silver and potentially rare earth elements from retired data centre hardware. The project gives the seaweed company a new industrial angle, but remains firmly at the laboratory stage.
- A$100,000 initial allocation for at least 12 months of R&D
- Gold and silver recovery from circuit boards is the first target
- Rare earth element recovery will also be investigated
- Program covers alginate extraction, metal capture and recovery
- Pilot testing and a Singapore patent application remain conditional on results
Ocean Sciences Ltd (ASX:OSS) is putting A$100,000 behind an unusual proposition: using alginate extracted from Sargassum seaweed to recover valuable metals from retired data centre hardware and other electronic waste.
Seaweed Technology Targets Data Centre Metals
The initial focus is gold and silver in printed circuit boards and other electronic components, with the program also testing whether the same approach could capture rare earth elements. Ocean Sciences says the regular replacement of servers and related equipment, typically every three to seven years depending on the hardware and operating requirements, creates a recurring stream of e-waste.
That hardware also offers a relatively defined starting point for research. The company says the composition of data centre equipment categories is sufficiently well characterised for metal content to be estimated, with sampling and assay intended to confirm the actual quantities present.
Three Stage Program Moves From Extraction to Recovery
The board-approved program will run for at least 12 months and is built around three stages: extracting and preparing alginate from Indonesian Sargassum, developing a material that can selectively bind target metals from processed e-waste solutions, and finding ways to release and recover those metals while potentially reusing the alginate material.
The idea draws on published laboratory research showing that alginate-based materials can capture gold selectively and produce high-purity metal. Ocean Sciences says any potential reduction in energy or reagent use compared with conventional recovery methods will need to be assessed during its own work; those benefits are not yet demonstrated by this program.
Commercialisation Depends on Laboratory Evidence
If the laboratory results are successful, Ocean Sciences intends to explore pilot-scale testing and possible collaboration with electronic waste processors and precious metal refiners. The company also plans to investigate intellectual property protection for its formulation and recovery processes, including a potential initial patent application in Singapore subject to patentability assessment.
The initiative draws on Ocean Sciences’ Indonesian seaweed sourcing network and its Seaweed Innovation and Application Centre in Takalar Regency, South Sulawesi. Preliminary discussions with Indonesia’s National Research and Innovation Agency are also mentioned, but no commercial partnership or technical outcome has been secured. The central test now is whether a promising seaweed chemistry can perform consistently on real e-waste streams at a cost and scale that recyclers would accept.
Bottom Line?
The strategic appeal is clear, but the next value-bearing evidence will be recovery performance, repeatability and the cost of moving beyond the laboratory.
Questions in the middle?
- Can the alginate selectively recover gold and silver from real processed circuit-board solutions rather than controlled laboratory samples?
- Will rare earth recovery prove technically meaningful alongside the initial precious-metal focus?
- What additional funding, partners and process changes would be required to reach pilot-scale testing?