Copper Market Regional Insights 
http://iminthai.com/home.php?mod=space&uid=124411 
 
The countries producing the world’s copper 
http://mystrotain.free.fr/forum/showthread.php?tid=93625 
 
 
Global Copper Market Trends 
http://www.voteup.club/showthread.php?tid=72&pid=240#pid240 
 
The world’s top five largest copper mining companies by production 
http://i-freego.com/viewthread.php?tid=2640713&page=1&authorid=3209524 
 
Ranked: The World’s Largest Copper Producers 
http://www.weseematsu.com/forum.php?mod=viewthread&tid=4642&pid=2892167&page=49227&extra=page%3D1#pid2892167 
 
How is Copper Used? 
http://fullsoftcrack.com/forum/showthread.php?tid=271