The company looking to develop mining at the White Pine and Copperwood sites has taken on a partner. Highland Copper Company says it has signed a non-binding letter of intent with AMCI Holdings to form a joint venture to develop Highland’s projects in the Upper Peninsula. Highland Executive Chairman David Fennell says AMCI will add financial strength and complementary technical capability to their efforts. Highland would contribute all of its interest in mineral projects in Michigan to the joint venture. AMCI will contribute 45 million dollars. AMCI is a privately-owned resources company, with investments in iron, coal and copper. Highland is a Canadian mineral exploration company. In mid-May, it completed an interim closing on its purchase of the White Pine property from the Copper Range Company. The deal will be finalized after White Pine reaches an agreement with Copper Range and the State of Michigan to assume environmental responsibility for the property. That could take until late next year.