Industry Minister Mélanie Joly says Ottawa would want to see longer-term commitments to Canada before Vancouver's Teck Resources Ltd. is allowed to merge with U.K.-based miner Anglo American PLC.

"There have been conversations with the companies, and clearly we wanted to make sure that there would be a net benefit to Canada. But I think right now that it's not enough," Joly said as she headed into a cabinet meeting Tuesday.

The merger, she said, "must be according to our national security concerns and objectives, including economic security."

In announcing the deal last week, the companies said the combination would create a $70-billion copper mining powerhouse called Anglo Teck with headquarters and top executives based in Vancouver. They pitched it as a "merger of equals" even though

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