OTTAWA, Aug 18 (Reuters) - Canadian National Railway ( CNI )
, one of Canada's two main rail companies, on Sunday
formally notified the Teamsters union that it would start
locking out Teamsters' workers early on Thursday.
"Unless there is an immediate and definite resolution to the
labour conflict, CN will have no choice but to continue the
phased and progressive shutdown of its network which would
culminate in a lockout," it said in a statement.