Argentina, Brazil, Iran, Chile, Taiwan. Australia, Canada, South Korea, Germany, and several others. A umber of these are older. South Korea just launched the

Argentina, Brazil, Iran, Chile, Taiwan. Australia, Canada, South Korea, Germany, and several others. A umber of these are older. South Korea just launched the ROKS Ahn Mu, the second sub in its class, in November. Australia's Attack class is beginning construction, with 12 subs to be delivered. They are planned to be in commission from 2030-2070.