GMG's THERMAL-XR(R) to be Distributed Exclusively to Global Oil and Gas/LNG Industry with Curran International

Brisbane, Queensland, Australia--(Newsfile Corp. - May 19, 2026) - Graphene Manufacturing Group Ltd (TSXV: GMG) (OTCQX: GMGMF) (" GMG " or the " Company ") is pleased to announce the signing of a global distribution agreement with Curran International for THERMAL-XR® and for exclusive application services for the product oil and gas/LNG industry. Curran International is a global leader in providing heat transfer technologies to some of the world's largest oil and gas companies. Curran International has completed work for the following companies: Exxon Mobil, BP, Philips 66, Chevron, Shell, Marathon, Citgo, Aramco, Total, Sabic, Motiva, Reliance, ONGC, HMEL, Cenovus, Suncor Energy and Satorp.

Curran International ( https://curranintl.com/ ) has various field service teams located in Houston, Texas USA; Edmonton, Alberta, Canada; Jubail, Saudi Arabia; Rotterdam, Netherlands; Gujarat, India; and Singapore. Curran International has completed over 250,000 projects around the world over the past 45 years, safely providing heat transfer equipment solutions. To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/8082/297942_2433db0e34c91b7a_001full.jpg Ed Curran , CEO of Curran International, commented "We look forward to working with GMG and bringing GMG's THERMAL-XR® graphene coating technology to our existing and new clients.

The combination of additional heat transfer properties and high corrosion resistance makes THERMAL-XR® a very compelling proposition for the Oil and Gas/LNG Industry." Craig Nicol , CEO & Managing Director of the Company, commented "We look forward to working with Ed and his amazing team at Curran International - they have built up a broad range of technologies and services over many years in servicing one of the largest industries and we are pleased to be able to add THERMAL-XR® to this range." Jack Perkowski , Chairman and Non-Executive Director of the Company, commented: "This arrangement with Curran International is a significant step in GMG's global commercialisation strategy for THERMAL-XR®. Gaining access to Curran International's established relationships with the world's leading oil and gas and LNG companies — including ExxonMobil, BP, Shell, Chevron, and Saudi Aramco — provides GMG with immediate reach into one of the most demanding and high-value industrial sectors in the world. The fact that a specialist with over 45 years of experience and more than 250,000 completed projects has chosen THERMAL-XR® as a core part of its offering is a strong validation of the technology's performance and commercial potential.

We see this as a meaningful step in building the substantial recurring revenue base that will drive long-term value for GMG shareholders." To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/8082/297942_2433db0e34c91b7a_002full.jpg About THERMAL-XR® ENHANCE powered by GMG Graphene: THERMAL-XR® ENHANCE coating system is a unique patented product and method of improving the conductivity of heat exchange surfaces (including for air conditioners, refrigeration systems, heat pumps and data centres) and improving and maintaining the performance of new units at peak levels. The process coats and protects heat exchange surfaces from corrosion (successfully passed up to 20,000 hours of salt sea spray corrosion testing) while improving the corroded thermal conductivity and increasing the heat transfer rate by leveraging the physics of GMG Graphene, resulting in an efficiency improvement and a potential power reduction. 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. 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 graphene aluminium-ion batteries ("G+AI Batteries").

GMG has also developed a graphene additive slurry that is aimed at improving 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 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 and U.S. 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", "believes" "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. This information and 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, THERMAL-XR® coating, applied or distributed by Curran International and or to the oil and gas/LNG industry, the significance of the relationship with Curran International to GMG's commercialization strategy and progress towards recurring revenue the energy savings, anti-corrosion and extension of asset life attributes of THERMAL-XR®, the ability of GMG's energy savings products to build a revenue base, 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 commercialization of G+AI Batteries, GMG's ability to improve the performance of lithium-ion batteries and GMG's critical business objectives.

Such forward-looking statements are based on a number of assumptions of management, including the performance improvement and corrosion resistance of heat exchangers in the oil and gas/LNG industry. 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 that GMG does not receive or receive on a timely basis the fully signed consent notice from the 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 out-look that are incorporated by reference herein, except in accordance with applicable securities laws. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/297942 Source: Graphene Manufacturing Group Ltd.