Scrubber advocacy group Clean Shipping Alliance (CSA 2020) has added more big names to its membership.
It now has 35 companies on its list, including latest sign-up Wallenius Wilhelmsen.
CSA's members now own nearly 2,500 ships, with other recent joiners including German shipmanager Hammonia Reederei, which is being bought by Norway's NRP, US tanker owner International Seaways, Greek company Chandris (Hellas) and US-listed bulker owner Genco Shipping & Trading.