The Worl d Copper Factbook 2019 International Copper Study Group 24 0 1 0 0 0 2 000 3 0 0 0 4 000 5 0 0 0 6 0 0 0 7 000 8 00 0 9 000 10 00 0 Ir a n I n do ne si a C a na da Pe r u K a z a k h st an Be l g i u m Au s t r a l i a Sp a i n Me x i c o Za m b i a Po l a n d In d i a Ge r m a n y Ko r e a n R e p Co n g o R u ssi a n F e d U n i t ed S t at es Japa n Ch i l e Ch i n a Re f i n e d C o ppe r Pr o duc t i o n by C o untr y To p 20 C o unt r i e s in 2018 Thou sand me t r ic tonne s co p p e r So u r c e IC S G In 2018 China accounted for 39 of wo rld copper re fin e d p r o duct i o n followed by Chile 10 Japan 7 and the Uni t ed St at es 5