The company was founded by Rudy Gomez, an engineer and inventor who has spent three decades solving one of the hardest problems in clean energy. With US$51 million invested in R&D, his team developed a Unipolar electrolysis technology that produces green hydrogen at 10.8 kwh/kg — against 53 kwh/kg for the best commercial electrolysers in the world. The result is a production cost below US$2/kg in a market priced at US$8–12/kg.

Rudy was a mechanical engineering graduate from the University of the Philippines under several US lecturers from US Aid programs including one from MIT. After working for a year as project engineer for Proctor and Gamble Philippines, Rudy accepted a Colombo Plan scholarship to study extractive metallurgy at the University of Adelaide in February 1957. After winning the Barbara Freeman Medal in Extractive Metallurgy and the F W Reid Memorial medal in Industrial Chemistry, Rudy was invited to study the pilot plant reduction of lead oxide by hydrogen at 700C in a transport reactor and this led to an MSc degree in 1963.

Rudy spent time carrying out plant R&D and engineering on copper-zinc metallurgy in Canada, engineering design at Foster Wheeler Corporation in New York, copper smelting with Western Knapp Engineering in San Francisco, and copper-zinc roasting and extraction at the Mitsui Smelter in Southern Japan. In 1970, RMG spent a year with AMDEL in Adelaide as Group Leader in Mineral processing.

From 1965 to 1982, Rudy designed, engineered, constructed, and commissioned the 12,000 TPD copper-gold plant of Philex Mining Corporation; the 10,000 TPD copper-gold mine of Western Minolco Corporation; and the 15,000 TPD copper-molybdenum mine of the CDCP Mining Corporation in the Philippines.

In 1983, when he returned to South Australia, he tried to establish a 10,000 BPD oil refinery and a world-class petrochemical plant at Port Bonython near Whyalla. The two projects did not proceed because of strong objection from existing industry players. In June 2005, Rudy discovered the rich copper-gold-uranium-rare earth Carrapateena deposit in the mid-north of South Australia that was sold to OZ Minerals Limited at US$250 million which was on-sold to BHP as part of a US$9 billion deal. It is now a working mine employing more than 1,800 workers.

Meanwhile, Rudy continued to pursue his research on hydrogen from 1994 based on his belief that there will be a conflict between carbon fuels and the environment. In 1999, the grant of US patent 5,882,502 of a diaphragm-less electrolytic cell accelerated the work on hydrogen development. The main objective was that hydrogen will replace carbon fuels in electric power generation and as fuel for land, water and air transport vessels. In 2019, Rudy was granted the all-important BREAKTHROUGH US patent 10,314,316 and after spending US$51 million of his own fund and with the support of a dedicated team of research scientists. This patent describes the Unipolar electrolysis of water to produce hydrogen at as low as 10.8 kwh/kg energy consumption compared to the conventional energy consumption of 32.936 kwh/kg. Subsequently other patented hydrogen technologies that relate to commercial low-cost production of hydrogen and clean electricity were granted. The latest one was granted in late 2025.