The Globe and Mail reports in its Thursday edition that Teck Resources is trying to assuage concerns that it might not be able to reach a joint-venture agreement to combine two giant Chilean copper operations, a key rationale for Anglo American's proposed acquisition of the company. The Globe's Niall McGee writes that Teck late last month announced it had reached a friendly arrangement with London-based Anglo to be acquired in an all-stock, no-premium deal worth about $20-billion. The aim is to combine Teck's Quebrada Blanca copper mine with Anglo's Collahuasi operation. However, creating a joint venture to operate both mines could be tricky as many other companies are involved other than Teck and Anglo, and all would need to reach agreement on a new ownership structure, including Switzerland's Glencore. On Wednesday, Teck chief executive officer Jonathan Price said he is confident that an agreement can be reached with all parties involved, but he also conceded that it isn't a fait accompli: "It will require the agreement of all parties." Some Teck investors are concerned because they are being asked to vote on the proposed Anglo acquisition on Dec. 9, well before the joint-venture details will have been worked out.