As a holder I love hearing offer etc but wouldn't any offer be dependent on having a rail solution first? Also wouldn't they (vale etc) suppressed the sp until the offer is made? E.g. Keep the sp @ 0.90 then offer t/o at 50% premium (1.35)? Not sure what us going on in the background but the volume suggest something big is happening.
Again just my opinion and I am eager to hear other peoples.