Five months after announcing it was intalks over further cooperation, the shipowner said it would team up on servicesfrom Asia to the north-west of the US and Canada.
It will run three weekly loops, up from twopreviously.
"Customers will benefit fromfirst-rate services connecting South & North China and Korea and PacificNorth West," it said.
Zim already works with the alliancebetween Asia and the US east coast.
The