GMG G-LUBRICANT Achieves 13.8% Fuel Saving in Major Australian Charity Rally

Brisbane, Australia--(Newsfile Corp. - November 18, 2025) - Graphene Manufacturing Group Ltd. (TSXV: GMG) (OTCQX: GMGMF) ("GMG" or the "Company") is pleased to announce the results of the G-LUBRICANT product demonstration test in a charity car rally across 3,850 kilometres in Australia (the "Charity Rally"). The Charity Rally ran from Australia's central city of Alice Springs to the country's Gold Coast. GMG sponsored the GC Strip rally team from the Gold Coast in their participation in the Charity Rally (the "Rally Car Team").

Before the start of the Charity Rally, the Rally Car Team drove 2,650km, 2,180km on sealed and 470km on unsealed roads, from Gold Coast to Alice Springs over a three day period. The Rally Car Team made the trip in a Ford Falcon Petrol/Gasoline engine rally car that had not yet been treated with G-LUBRICANT. On the trip to Alice Springs, the Ford Falcon averaged 10.8ltrs / 100km of fuel.

The Charity Rally itself began in Alice Springs and ran a total of 3850 kilometres, approximately 2,000km on sealed and 1,850 on unsealed roads (some of which had river crossings and were badly rutted), to Australia's Gold Coast. After adding G-LUBRICANT, the Ford Falcon Rally Car averaged 9.3ltrs / 100km on the trip, a reduction of 1.5ltrs / 100km, approximately 13.8%, in fuel efficiency savings.

The Rally Car Team Lead – Scott Hubbard – commented: "Not only did we have better fuel efficiency, but we noticed a little drop in engine temperature and the engine definitely sounded smoother. By the finish line, we had beaten the car up pretty badly, front end suspension gone, front shocks completely failed, cracked windscreen, roof damage, exhaust damaged, front wheels knocked out of alignment, gearbox issues, several tyres shredded and a number of cosmetic damages to the car. In fact, the only thing that really made it through the rally unscathed and in perfect working order was the engine!"

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The Charity Rally is not a race, but rather a challenge to achieve the unthinkable to drive cars worth just $1,500 across Australia via some of its most formidable roads, all in the name of charity. The Charity Rally is a dedicated fundraising event for cancer research with funds going to Cancer Council, one of the largest non-government funders of cancer research in Australia. Cancer Council conducts and funds research studies across all cancers and all stages of the cancer journey. Thanks to the community funds raised by events such as the Charity Rally, Cancer Council can fund world-class research that reduces the impact of cancer for everyone. Approximately $59 million over the past 15 years has been raised by Box Rallies to date, supporting ground-breaking projects.