A na-akọ na ogbunigwe Alaska dị na Chinoy ga-amaliteghachi mmepụta ọla kọpa mgbe ndị ọchụnta ego China jikọrọ aka na Zimbabwe Mining Development Corporation (ZMDC) ma tinye ego US $ 6 nde.

Ọ bụ ezie na emechila ọla kọpa Alaska kemgbe 2000, ọ maliteghachiri ọrụ.A na-atụ anya na a ga-arụ ọrụ ya nke ọma n'ọnwa Julaị afọ a wee ruo ihe mgbaru ọsọ nke 300 tọn ọla kọpa kwa ụbọchị.

Ka ọ dị ugbu a, onye na-etinye ego na China, akụ ọla kọpa Dasanyuan, etinyela ọkara nke isi obodo ya ($ 6 nde).