I got a notice about this, figured I'd post it for anyone who might be interested. Sounds like it should hopefully be a good thing for both companies. Pan American is a huge player in the Latin America market - this will give them a better USA footprint, and MTL will gain some addl size and financial backing.
https://www.mutualtrust.com/content/pdf/SpecialAnnouncemet.pdf
https://www.mutualtrust.com/content/pdf/SpecialAnnouncemet.pdf