Analysis increasingly shows that derivative commodities produced using green hydrogen – including low emission ammonia, methanol, reduced iron, and steel – will play a significant role in global trade flows associated with hydrogen. Moving gaseous green hydrogen itself over long distances may be technically challenging, due to its low volumetric energy density, and instead the derivatives may be easier to ship intercontinentally. As a result, certification schemes may be increasingly required to guarantee the attributes of the derivatives. Regulatory frameworks may evolve to set requirements for acceptable levels of greenhouse gas emission intensity associated with the production of “green” or low-emission ammonia or methanol.