President Donald Trump has signed an executive order aimed at establishing American "dominance" in deep-sea mining in international waters.

President Donald Trump on Thursday signed an executive order aimed at boosting the deep-sea mining industry, marking his latest attempt to boost U.S. access to nickel, copper and other critical minerals used widely across the economy.

President Donald Trump has defied international norms on the nascent field of deep-sea mining, signing an executive order Thursday expanding the practice for rare earth minerals in domestic and international waters.