HNO International, Inc. focuses on systems engineering design, integration, and product development to generate green hydrogen-based clean energy solutions in the United States. The company offers hydrogen refueling and generation systems for fuel cell electric vehicles, such as forklifts, drones, cars, and trucks, as well as for zero-emission heating and cooking applications; and green hydrogen systems engineering design, integration, and products to the zero-emission vehicle and mobile equipment market consisting of hydrogen fuel cell electric passenger vehicles, material handling equipment, and forklifts and airport ground support equipment, as well as the medium and heavy-duty truck market; ammonia, fertilizer, steel, mining, electronics, semiconductors, and fuel cell electric vehicles; and the gasoline and diesel engine emissions and maintenance reduction product and services market. It also provides small to mid-scale green hydrogen production facilities to decarbonize industrial processes and increase the use of hydrogen and hydrogen-based fuels for transportation and material handling; and hydrogen technologies that decrease emissions and maintenance for existing gasoline and diesel internal combustion engines. In addition, the company manufactures compact hydrogen refueling station, a solution for rapidly deploying hydrogen production, it has a dispensing system that can be adapted for vehicles ,warehouse equipment, or other fuel cell applications, including power generation; hydrogen carbon cleaner, a device used to clean carbon deposits from internal combustion engines; and scalable hydrogen energy platform, a hydrogen energy system that efficiently produces, stores, and dispenses green hydrogen made from water. The company was formerly known as Excoin Ltd and changed its name to HNO International, Inc. in September 2021. HNO International, Inc. is based in Murrieta, California.