Mitsui O.S.K. Lines revenue up 24.5%, operating profit down 1.8%

What did Mitsui O.S.K. Lines earn in the September quarter?

On November 9, Mitsui O.S.K. Lines reported second-quarter revenue of JPY 544.03 billion for the three months ended September 30, up 24.5% year on year from JPY 437.07 billion. Operating profit moved the other way, edging down 1.8% to JPY 34.14 billion from JPY 34.75 billion.

Net profit attributable to parent company shareholders rose about 86.6%, from JPY 63.39 billion to JPY 118.3 billion, which the company attributed to yen depreciation and one-time accounting gains.

Read those three lines together and the quarter looks like a rate-and-currency story rather than an operating one. The Middle East conflict disrupted global shipping, pushed sea freight rates higher and redirected transport demand into other regions, and the top line followed.

What did the rate surge do to the margin?

Revenue added JPY 106.96 billion (544.03 minus 437.07) while operating profit surrendered JPY 0.61 billion. Operating margin narrowed from 7.9% to 6.3% — some 1.7 percentage points handed back on a 24.5% top-line gain.

Mitsui O.S.K. Lines named the offsetting costs: disruption to shipping through the Strait of Hormuz, rising fuel prices, higher vessel depreciation and increased overseas logistics costs. Each took back part of what higher freight rates paid in.

For shippers and forwarders the lesson is narrow and useful. A routing shock lifts rates and costs simultaneously, so the party winning on freight is not necessarily the party winning on margin. Carriers that add bunker surcharges recover fuel; carriers also carrying older tonnage, higher depreciation and re-routed cargo on longer strings do not net out ahead.

Why is net profit nearly 3.5 times operating profit?

JPY 118.3 billion of net profit on JPY 34.14 billion of operating profit puts roughly JPY 84.16 billion below the operating line, against a JPY 84.91 billion year-on-year increase in net profit. A weaker yen and one-time accounting gains did that work, and both sit among the least repeatable inputs a carrier owns.

The results as reported do not split how much came from currency translation and how much from a one-off accounting entry. Until the company discloses the components, treat the 86.6% headline as a currency-and-accounting figure, not evidence that the shipping operation improved. It did not: operating profit fell.

What does the unchanged full-year forecast require?

Mitsui O.S.K. Lines held its forecast for the fiscal year ending March 2027: revenue of JPY 2.37 trillion, operating profit of JPY 151 billion and net profit of JPY 300 billion. No raise, in a quarter when revenue grew by a quarter.

Back out the September period and the remaining three quarters need to average roughly JPY 608.7 billion of revenue, about 12% above the JPY 544.03 billion just posted, and roughly JPY 39.0 billion of operating profit, about 14% above JPY 34.14 billion. That arithmetic assumes the April-June quarter matched September; those figures are not in the release quoted here.

Net profit is where the pressure shows. Q2 alone delivered about 39% of the JPY 300 billion full-year forecast. The remaining JPY 181.7 billion, or about JPY 60.6 billion a quarter, has to arrive while operating profit averages only about JPY 39.0 billion — which means the plan still leans on non-operating support, the same weak yen and one-off gains that carried this quarter.

What the disclosure leaves out

The reported results contain no TEU volumes, no trade-lane or service-line breakdown, no owned-versus-chartered split, no freight rate index, no bunker cost per TEU or tonne, and no quantified impact of the Strait of Hormuz disruption on volumes. Two questions a shipper would ask go unanswered: how much of the 24.5% revenue gain came from price rather than boxes moved, and whether the disruption was still running when the September books closed.

Also missing: any change to capex, fleet schedule or sailing program. In a quarter with a 24.5% revenue jump, leaving guidance untouched reads as a management view that rates are temporary while fuel, depreciation and overseas logistics costs are not. It is a caution worth watching, because it confirms that the cost side of the disruption has already demonstrated it can absorb a rate windfall.

The next test is whether fuel, freight rates and the yen move together or against each other: with costs able to swallow a rate windfall, the JPY 151 billion operating profit forecast for the year to March 2027 depends on which way they go.