The refrigerated cargoship company said net earnings to 31 December were JPY 476m ($4.05m), from JPY 249m in the same period of the previous financial year.
Revenue was little changed at JPY 7.2bn, compared to JPY 7.27bn a year ago.
But operating earnings grew to JPY 601m from JPY 440m.
The company is forecasting an annual profit of JPY 480m, suggesting a slim gain of JPY 4m in the fourth quarter.
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