OTTAWA — Prime Minister Mark Carney said Tuesday that Canada won’t split its submarine contract between two suppliers.

Carney told reporters in New York City that there’s “nothing I see that would suggest that we would have a mix fleet in submarines.”

“You just get too many efficiencies in economies of having one fleet,” Carney said, adding that the efficiency of being able to cycle the same type of submarine if one is being tuned up is “just overwhelming.”

Ottawa has narrowed the field of contenders for the submarine contract from the initial five. The two finalists are South Korea’s Hanwha and its KSS-III subs and ThyssenKrupp Marine Systems and its Type 212CD subs, which are now being built for Germany and Norway.

“When the decision is made by the right people, it will be made on th

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