Japan's K Line is taking a ship-by-ship approach to meeting the IMO's new rules on low-sulphur fuel.
CEO Eizo Murakami said on its website that the shipowner will use a combination of low-sulphur fuel oil, scrubbers and LNG to become compliant by the 1 January 2020 deadline.
Other alternative fuels could also be used.
"We will proceed on a ship-by-ship basis, aware that we cannot limit ourselves to one particular measure," Murakami said.
"Implementing environmental measures will entail large costs, but it is important to take action without delay by sharing the burden fairly among beneficiaries."
Regarding the ONE containership tie-up with compatriots NYK and MOL, the CEO said that once vessels ordered have been delivered, the company will have 224 ships and a capacity of 1.55m teu.
This will rank it just behind the big three European containership companies, Maersk Line, CMA CGM and MSC.
"Now we are involved in this business as a shareholder," he added.
"I firmly believe that ONE — which fuses the DNA of three Japanese companies, each with different strengths but a common commitment to quality — will earn the trust of everybody."
"The three shipping companies involved will provide support with a strong determination to make ONE inevitably successful as the nation’s largest containership entity."