Asian liner operators HMM and Ocean Network Express (ONE) are making their carbon emissions more transparent.

The South Korean liner operator has rolled out figures showing it has halved its emissions since 2010.

The reduction follows a more than two-fold increase in HMM’s fleet capacity over the period.

Separately, Japanese-controlled ONE has debuted a new tool to calculate carbon dioxide emissions from operating its vessels.

The ONE Eco Calculator provides total distance and total CO2 emissions from place-of-receipt to place-of-delivery, including door locations.

Emissions are measured from Tank-to-Wake from burning fuel on board ships. They will also be measured from Well-to-Wake — which includes the emissions from extraction, transportation and refinement of fuel oil.

2050 target

Both ONE and HMM are seeking to be carbon neutral by 2050.

Seoul-based HMM said its CO2 emissions had dropped by 57% over the last decade.

CO2 emissions decreased from 68.7g in 2010 to 29.05g in 2021, measured in transportation of 1 teu of container for 1km (gCO2/teu-km).

The size of the HMM fleet had more than doubled over the period, from 337,407 teu to 755,209 teu.

Separately, ONE is seeking to encourage stakeholders to participate in the process of decarbonation, said Koshiro Wake, senior vice president of corporate strategy & sustainability department

“The ONE Eco Calculator was developed not only for ourselves, but also for like-minded players and customers seeking sustainable transport solutions and seeking to manage their own cargo emissions,” he said.

Achieving net zero is at the top of ONE’s management agenda, along with the company’s Green Strategy which was unveiled in March 2022, Wake added.