HST is a Chemical Engineering Company established on 2003, in Torino, Italy. Today it is a pioneer company in the field of process engineering, design and construction of turn-key plants for fuel chemical processing, energy production and environmental treatment. HST provides specialized engineering solutions and services on chemical processing, energy, power generation and environmental treatment. Its main activities refer to chemical engineering, above all chemical plants, industrial catalysis, and energy production/ transformation, with a special focus on hydrogen production from hydrocarbons, fuel cell systems and production/use of renewable energies such as biofuels (bioethanol, biomasses and biodiesel), wind and photovoltaic energy.