The secretary-general of the International Seabed Authority is set to run for a third term leading the United Nations-affiliated organization that regulates deep sea mining, as control of mineral resources used to make electric car batteries becomes a focus of US-China rivalry.

The ISA’s 168 member nations and the European Union will elect the next secretary-general at what is expected to be a pivotal meeting in July. Secretary-General Michael Lodge, a UK lawyer, will be opposed by Brazilian marine scientist Leticia Carvalho in an election that will shape the future of deep sea mining. It comes as the ISA faces pressure to finish writing regulations that could allow mining to begin within the next two years.