Built in 1941, by Kingston Shipbuilding of Kingston, Ontario (hull #19) as the HMCS Sudbury (K-162) for the Royal Canadian Navy.
Officially designated as a Patrol Vessel-Whaler Type, she was a Flower-class corvette based on a design of whale-catching ships. She was named for a Canadian mining town that supplied nickel for the war effort.
In 1946, the vessel was sold. Where she was renamed as the Sudbury .
In 1948, the vessel was sold to Pacific Mills, and converted into a tugboat.
In 1954, she was acquired by Island Tug & Barge Limited of Vancouver, British Columbia, Canada where she retained her name. She was outfitted with new navigation equipment and equipped with materials for deep-sea salvage work.
In 1960, Island Tug and Barge Limited of Vancouver, British Columbia, Canada was acquired by McAllister Towing Limited Montreal of Montreal, Canada. Where the tug retained her name.
In 1966 the tug suffered a boiler explosion at the dock, and was declared a total loss.
In 1967 the tug was scrapped.
She was powered by one triple expansion steam engine for a rated 2,750 horsepower.