Ocean Sciences Launches Seaweed R&D to Recover Gold From Old Servers

Ocean Sciences has committed A$100,000 to a 12-month R&D push using Sargassum alginate recovery to pull gold and silver from retired data centre hardware, a bold pivot for the seaweed specialist that is still firmly at the laboratory stage.
By Josua Ferreira -
  • Ocean Sciences' Board has approved A$100,000 in initial funding for an R&D program of at least 12 months using Sargassum alginate to recover metals from retired data centre hardware.
  • Gold and silver are the initial targets, with rare earth elements also under investigation, across a three-stage process of extraction, capture and recovery.
  • Data centre hardware is replaced every three to seven years, giving the company a recurring electronic waste stream to target as AI and cloud demand grows.
  • A proposed initial patent application in Singapore and preliminary talks with Indonesia's BRIN point to an IP and partnership strategy, though both remain early and conditional.
  • The company states there is no assurance the technology will achieve the technical performance, scalability or economics needed for commercial use.
Summarise with AI:

Ocean Sciences launches R&D program targeting gold and silver from retired data centre hardware

Ocean Sciences Ltd (ASX: OSS) is set to commence an R&D program investigating Sargassum-derived alginate to recover precious metals and rare earth elements from retired data centre hardware and other electronic waste. The Board has approved the program and authorised an initial funding allocation of A$100,000.

The program is anticipated to run for at least 12 months, with gold and silver the initial focus and rare earth elements also under investigation. For a commercial seaweed supply, research and development company, the initiative targets higher-value industrial applications for seaweed-derived materials.

Why retired data centre hardware is the target

Rapid expansion of data centre infrastructure, particularly in response to rising demand for artificial intelligence and cloud computing services, is creating a growing market for recycling and recovering valuable materials from retired hardware. Target materials include those recovered from servers and related equipment.

Data centre hardware is subject to regular replacement cycles, typically ranging from three to seven years depending on equipment type and operational requirements. These cycles generate a recurring supply of electronic waste containing recoverable gold and silver, as well as certain rare earth elements.

The composition of data centre hardware categories is well characterised, which allows precious metal content to be estimated. Actual content is confirmed by sampling and assay.

Frank Cannavo, Chairman

“Having spent much of my career in the mining industry, I recognise the significance of developing new technologies to recover valuable metals and minerals from alternative sources. The rapid growth of the data centre industry, together with the regular replacement of its hardware, presents an emerging opportunity to recover gold, silver and potentially rare earth elements from electronic waste.”

How seaweed alginate could recover precious metals

Alginate explained

Alginate is a naturally occurring compound extracted from brown seaweed, including Sargassum. Its chemical properties enable it to bind certain dissolved metal ions, providing a potential basis for selective capture and recovery of valuable metals.

The approach builds on peer-reviewed research demonstrating the potential of alginate-based materials to capture precious metals under laboratory conditions. The company’s objective is a seaweed-based recovery process with the potential to reduce energy and reagent use compared with conventional methods, and these potential benefits are yet to be assessed during the R&D program.

The three-stage research process

The program will investigate a three-stage process:

  1. Extraction: extracting and preparing alginate from Indonesian Sargassum seaweed for use in metal recovery applications.
  2. Capture: developing an alginate-based material capable of selectively binding gold and silver, and potentially rare earth elements, from solutions derived from processed electronic waste.
  3. Recovery: developing methods to release and recover the captured metals and elements and, where technically feasible, reuse the alginate-based material.

Ocean Sciences Alginate Metal Recovery Process

Commercial pathway and IP strategy

The company’s strategic objectives include:

  • Data centre market: targeting the growing volume of retired data centre hardware containing identifiable and recoverable quantities of gold and silver, alongside potential opportunities for rare earth elements.
  • Commercialisation: subject to successful research outcomes, developing a proprietary alginate-based metal recovery solution for commercial electronic waste recyclers and metal refiners.
  • Industry collaboration: exploring partnerships with data centre operators, electronic waste recyclers and metal refiners.
  • Existing capabilities: leveraging its Indonesian seaweed sourcing network and its Seaweed Innovation and Application Centre in Takalar Regency, South Sulawesi.
  • Research collaboration: progressing preliminary discussions with Indonesia’s National Research and Innovation Agency (BRIN) regarding Sargassum alginate extraction, and exploring other research partnerships.

The Takalar Seaweed Innovation Centre is being developed in staged workstreams, and the company intends to bring selected outsourced R&D activities in-house there over time, which could support work such as alginate extraction.

Ocean Sciences intends to pursue intellectual property protection for proprietary developments, including the formulation of the alginate-based recovery material and associated metal capture and recovery processes. It proposes to lodge an initial patent application in Singapore, subject to appropriate intellectual property and patentability assessments.

Item Detail
Initial funding A$100,000, authorised by the Board
Anticipated duration At least 12 months
Initial metals Gold and silver, with rare earth elements also investigated
IP plan Proposed initial patent application in Singapore, subject to IP and patentability assessments

The initiative remains at an early research and development stage. The company states there can be no assurance the proposed technology will achieve the technical performance, commercial scalability or economic viability necessary for commercial deployment.

What happens next for Ocean Sciences

  1. The R&D program is anticipated to run for at least 12 months, with Ocean Sciences to report progress as key technical milestones are achieved.
  2. Subject to successful laboratory results, the company intends to explore pilot-scale testing and potential collaboration with commercial electronic waste processors.
  3. Ocean Sciences proposes to lodge an initial patent application in Singapore, subject to appropriate intellectual property and patentability assessments.

For readers wanting to see how Ocean Sciences runs another seaweed R&D effort, our full explainer on the seaweed bio-fertiliser program covers the extraction and yield testing across red, green and brown seaweed formulations and the path to crop efficacy trials.


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Frequently Asked Questions

What is alginate and how can it recover precious metals?

Alginate is a compound extracted from brown seaweed such as Sargassum that can bind certain dissolved metal ions. Peer-reviewed research has shown alginate-based materials can capture precious metals under laboratory conditions, which is the basis of Ocean Sciences' program.

What is Ocean Sciences' new R&D program targeting?

Ocean Sciences (ASX: OSS) will research Sargassum-derived alginate to recover gold, silver and potentially rare earth elements from retired data centre hardware and other electronic waste. The Board has authorised initial funding of A$100,000 for a program expected to run at least 12 months.

Why are retired data centre servers a source of gold and silver?

Data centre hardware is typically replaced every three to seven years, creating a recurring supply of electronic waste containing recoverable gold, silver and some rare earth elements. Metal content is estimated from known hardware composition and confirmed by sampling and assay.

What are the next steps for the Ocean Sciences alginate program?

The company will report progress as technical milestones are met, and if lab results succeed it intends to explore pilot-scale testing and collaboration with commercial e-waste processors. It also proposes to lodge an initial patent application in Singapore, subject to IP and patentability assessments.

Josua Ferreira
By Josua Ferreira
Partnership Director
Josua Ferreira holds a Bachelor of Commerce in Marketing and Advertising and brings a background in publication, business development, and ASX market storytelling. He has worked with listed companies across the resource sector and broader market, combining sharp commercial instincts with a genuine commitment to keeping investors informed.
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