The info is in front of you. See Chappy's pics. There are no other control structures. Give Elmer a ring.

As for potential buyers and who might trigger Teck to act faster:

Look at their supply demand situation. Someone's gonna get hurt real real bad. (Said with Scotish rrrr). http://www.mining.com/2012/03/15/codelcos-battle-with-anglo-american-worsens-threating-anglos-business/ This is going to come to a head fairly quick (8 weeks).