Business Copper craze? 14 March 2005 This caused speculation that KGHM, the world's sixth biggest copper producer, will post good Q1 results. However, Michał Marczak from DI BRE Bank believes copper prices will fall to zł.7,995 per tonne by the end of the year. More from Business All Yesterday 88.3% of Poles choose products from promotional flyers when shopping 2 days ago Poland prepares major highway upgrades as congestion grows 2 days ago Paid DataWalk secures U.S. patent protection for AI technology