Panama-Zambia Effecthttps://www.mining.com/web/copper-price-surges-on-supply-threat-as-iron-ore-shows-economic-risks/
For now, the main catalyst fueling copper’s rally is an unexpected tightening in global mine supplies. That’s been driven mainly by last year’s closure of a giant mine in Panama, but there are also growing worries about output in Zambia, which is facing an El Nio-induced power crisis.