Once Norway's Vianode launches production in North America, the deal will run through 2033. The new plant could be in the U.S. or Canada.

The deal, with Norway’s Vianode, is for delivery of a material critical for electric-vehicle batteries.

Key Takeaways GM reached a deal with EV battery materials company Vianode to supply the automaker with synthetic anode graphite.Anode graphite is the largest material by weight in lithium-ion batteries,