GMG launches graphene water coolant additive for data centres

Queensland, Australia--(Newsfile Corp. - August 24, 2026) - Graphene Manufacturing Group Ltd. (TSXV: GMG) (OTCQX: GMGMF) (" GMG " or the " Company ") is pleased to announce the launch of patent pending G FLUID TM for use as a graphene water-based additive for data centre and industrial cooling circuits to increase heat transfer and reduce microbial and bacterial growth. The cooling water treatment chemicals market is valued at US$15 billion per annum in 2026 and is expected to be valued at US$27.2 billion per annum in 2035 (with a 6.1% CAGR). [1] Figure 1 shows the launch of the initial pack size of 1 litre - used in 1:100 concentrate additive form - where 1 litre is added into 100 litres of coolant. Please see website for more details: https://graphenemg.com/graphene-products/g-fluid/ .

Figure 1.0 G FLUID ™ 1 Litre Bottle Launch To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/8082/311034_38099a9454ef4b8d_001full.jpg

The G FLUID ™ product can be used in various application as seen in Figure 2.0.

Figure 2.0 G FLUID™ Applications To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/8082/311034_38099a9454ef4b8d_002full.jpg

G FLUID ™ is expected to provide a higher heat transfer rate for data centre and industrial cooling systems - with preliminary internal testing showing an increased heat transfer rate of approximately 20% when G FLUID ™ is dosed into demineralized water at 1% - providing 0.01% of graphene by weight in final solution.

Please see launch video of how G FLUID™ and THERMAL-XR® can support energy reductions for data centres. https://youtu.be/_uAGHFaKQQQ?si=FvG7m_W36b2PBeD9

Cannot view this video? Visit: https://www.youtube.com/watch?v=_uAGHFaKQQQ

G FLUID ™ provides up to 87% anti-microbial testing outcomes as tested by an independent third party laboratory under testing standard EN 1276. Figure 3.0 shows the various test results from the third party laboratory for anti-microbial performance due to G FLUID™ dosed at 1% - providing 0.01% graphene by weight in the final solution.

Figure 3.0 G FLUID ™ Anti-Microbial Testing Results To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/8082/311034_38099a9454ef4b8d_004full.jpg

GMG's Managing Director and CEO, Craig Nicol, commented: " G FLUID ™ lets a data centre, industrial plant or building operator improve the heat transfer of the water or coolant already running through their cooling loop, at a simple 1% dose rate. Independent laboratory testing to the EN 1276 standard also shows a meaningful reduction in microbial growth in that same water, which matters for anyone managing corrosion, fouling and maintenance costs in a chiller system. We're launching first into data centres, where cooling demand is growing fastest, but the same dosage works in industrial process chillers and building chiller systems, giving us a large market to grow into."

GMG's Chairman and Director, Jack Perkowski, commented: " G FLUID ™ is our fourth energy-saving product alongside THERMAL-XR® and G® LUBRICANT, and it gives GMG a foothold in a cooling water treatment market worth more than US$15 billion a year globally, growing quickly as AI-driven data centre construction accelerates. It's a strong example of how our graphene production capability keeps opening up new, commercially relevant applications across very different industries."

USA EPA Application Update:

GMG is also pleased to announce the Company has submitted an amendment application to the United States Environmental Protection Agency ("EPA") seeking approval to manufacture, in addition to sell, graphene and GMG's THERMAL-XR®, G® LUBRICANT and G®FLUID products in the United States. This was based on the advice from the EPA to replace the Significant New Use Notice ("SNUN") the Company submitted in June 2026. GMG expects an EPA approval for this amendment by the end of September 2027 and the existing Consent Order conditions are not impacted for THERMAL-XR® sales into the United States.

About GMG

GMG is an Australian based clean-technology company which develops, makes and sells energy saving and energy storage solutions, enabled by graphene manufactured via in house production process. GMG uses its own proprietary production process to decompose natural gas (i.e. methane) into its natural elements, carbon (as graphene), hydrogen and some residual hydrocarbon gases. This process produces high quality, low cost, scalable, 'tuneable' and low/no contaminant graphene suitable for use in clean-technology and other applications.

The Company's present focus is to de-risk and develop commercial scale-up capabilities, and secure market applications. In the energy savings segment, GMG has initially focused on graphene enhanced heating, ventilation and air conditioning ("HVAC-R") coating (or energy-saving coating) which is now being marketed into other applications including electronic heat sinks, industrial process plants and data centres. Another product GMG has developed is the graphene lubricant additive focused on saving liquid fuels initially for diesel engines. GMG is also developing a graphene coolant additive focused on energy saving for data centres and industrial cooling applications.

In the energy storage segment, GMG and the University of Queensland are working collaboratively with financial support from the Australian Government to progress R&D and commercialization of GMG Graphene Batteries. GMG has also developed a graphene additive slurry that is aimed to improve the performance of lithium-ion batteries.

GMG's 4 critical business objectives are:

Produce Graphene and improve/scale cell production processes

Build Revenue from Energy Savings Products

Develop Next-Generation Battery

Develop Supply Chain, Partners & Project Execution Capability

For further information please contact:

Craig Nicol, Chief Executive Officer & Managing Director of the Company at craig.nicol@graphenemg.com , +61 415 445 223

Leo Karabelas at Focus Communications Investor Relations, leo@fcir.ca , +1 647 689 6041

www.graphenemg.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of this news release.

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain statements and information that may constitute forward-looking information within the meaning of applicable Canadian securities laws. Forward-looking statements relate to future events or future performance and reflect the expectations or beliefs of management of the Company regarding future events. Generally, forward-looking statements and information can be identified by the use of forward-looking terminology such as "intends", "expects" or "anticipates", or variations of such words and phrases, or statements that certain actions, events or results "may", "could", "should", "would" or will "potentially" or "likely" occur. These statements, referred to herein as "forward-looking statements", are not historical facts, are made as of the date of this news release and include, without limitation, statements regarding: G FLUID™'s ability to increase heat transfer rates and limit microbial and bacterial growth; the repeatability of preliminary internal heat transfer testing and of independent laboratory anti-microbial testing in commercial applications; the size and expected growth of the cooling water treatment chemicals market; G FLUID™'s suitability for various applications in water-based cooling systems, including data centres, industrial process chillers and building chiller systems; the Company's amendment application submitted to the United States Environmental Protection Agency ("EPA") seeking approval to manufacture, in addition to sell, graphene and GMG's THERMAL-XR®, G® LUBRICANT, G FLUID™ and other products in the United States; the expected timing of the EPA's review of, and decision on, the amendment application, including the Company's expectation of receiving approval by the end of September 2027; the Company's plans to manufacture and sell its products in the United States following any such approval; GMG's intentions to develop commercial scale-up capabilities; GMG's focus in the energy savings segment; GMG's intentions for the use of graphene lubricant additive on saving liquid fuels; expectations for R&D and commercialisation of Graphene Batteries; GMG's ability to improve the performance of lithium-ion batteries; and the Company's four critical business objectives.

Such forward-looking statements are based on a number of assumptions of management, including, without limitation, assumptions that: the Company's operational and strategic progress will continue; G FLUID™ will be purchased by cooling water treatment market distributors and customers in large volumes; G FLUID™ will increase heat transfer rates and limit microbial growth in commercial applications; the preliminary internal testing results and independent laboratory testing results will be repeatable and applicable in commercial applications; the EPA will accept and review the Company's amendment application in the ordinary course and will grant approval within the timeframe currently anticipated by the Company; the EPA will not require material additional testing, data or amendments in connection with the application; the regulatory requirements applicable to the manufacture and sale of graphene and graphene-based products in the United States will not change in a manner adverse to the Company; the Company's cash position and business fundamentals remain strong; that the preliminary results will be repeatable and applicable in commercial applications, that the warrant liability will decrease as warrants are exercised or expire, that future financial performance will improve, and that the accounting treatment of warrants under IFRS will remain unchanged.

Additionally, forward-looking information involves a variety of known and unknown risks, uncertainties and other factors which may cause the actual plans, intentions, activities, results, performance or achievements of GMG to be materially different from any future plans, intentions, activities, results, performance or achievements expressed or implied by such forward-looking statements. Such risks include, without limitation, fluctuations in the Company's share price that may increase the warrant liability: the risk that the EPA delays, denies or imposes conditions or restrictions on the approval of the Company's amendment application, or that the review takes longer than currently expected; the risk that the EPA requires additional data, testing or information that delays or increases the cost of the application; the risk that the Company is unable to manufacture or sell its products in the United States on the terms or within the timeframe currently anticipated; the risk that G FLUID™'s performance in commercial applications differs from preliminary internal testing or independent laboratory testing results; the risk that market adoption of G FLUID™ is slower or smaller than anticipated; failure to complete or commission the Gen 2.0 Plant as currently planned; construction, cost-overrun, technology and ramp-up risks associated with the Gen 2.0 Plant; failure to achieve operational milestones; inability to commercialize products; changes in accounting standards; adverse market conditions; foreign exchange volatility; and the risk factors set out under the heading "Risk Factors" in the Company's annual information form dated November 4, 2025 available for review on the Company's profile at www.sedarplus.ca .

Although management of the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements and forward looking information. Readers are cautioned that reliance on such information may not be appropriate for other purposes. The Company does not undertake to update any forward-looking statement, forward-looking information or financial outlook that are incorporated by reference herein, except in accordance with applicable securities laws.

[1] https://www.futuremarketinsights.com/reports/cooling-water-treatment-chemicals-market

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/311034

TMX Newsfile

August 24, 2026 - 4:58 AM PDT

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