Crew members aboard the Dosan Ahn Chang-ho submarine perform a naval salute as the submarine arrives at Canadian Forces Base Esquimalt in Victoria, British Columbia, Canada, on May 23 for a Korea-Canada joint naval exercise. [REPUBLIC OF KOREA NAVY]

Korea has reportedly added an unexpected sweetener to its bid for Canada's multibillion-dollar submarine contract: a 3.1 billion Canadian dollars ($2.23 billion) plan to build hydrogen-powered trucks on Canadian soil, as well as a plan to triple crude oil imports from the Great White North.

The proposal, code-named Project Beaver, is an industrial package to manufacture next-generation hydrogen freight trucks in Canada and build out a national hydrogen refueling network, offered as an industrial inducement tied to awarding the submarine work to Hanwha Ocean.

The plan was disclosed by Kang Hoon-sik, chief of staff to President Lee Jae Myung and the president's special envoy for the strategic partnership, during a visit to auto-parts maker Martinrea International in Woodbridge, Ontario, on Monday, according to an exclusive interview with CTV News.

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