SANTIAGO, July 8 (Reuters) - The world's biggest copper

producer, Chile'S state-run Codelco, will wait to see if some

countries are exempted from U.S. President Donald Trump's plans

to impose a 50% tariff on copper imports before weighing in on

the matter, Codelco Chairman Maximo Pacheco said on Tuesday.

"We have to see whether this will apply to all countries or

only some," Pacheco told Reuters, adding that he would also wait

to see which copper products might be targeted by the tariff,

which has yet to be officially announced.