Analysts optimistic that ministerial trips can revive dormant trade negotiations.
The agreement will scrap all import tariffs on the Canadian delicacy.
Ambassador says business groups from both sides have resumed regular meetings after lull.
One proposal suggests merging five job categories into one, which could affect salaries, union make-up.
Shell, BP, Statoil and CNOOC among oil and gas industry signatories calling for carbon pricing.
Clause linking human rights to trade included in deal: EU officials.
Lame-duck Barroso visits campaigner Harper.
Canada must adopt binding human rights standards for companies operating abroad.