b'A Rarely Used SolutionTo facilitate the merger, Mayer Brown helped National Bank file a Form F-80, registering up to $1 billion in common stock to be issued to CWB shareholders under the U.S.-Canada Multi-Jurisdictional Disclosure System (MJDS)the first such filing since 2018. For CWB preferred shareholders, the firm structured an exchange offer relying on the rarely used Rule 802 under the U.S. Securities Act, allowing the unregistered exchange of securities of a foreign private issuer.28'