TransportEvergreen to spend nearly $3bn on 'mega-size' container ships that can run on clean hydrogen-based methanolThe Taiwanese shipping company has approached six shipyards across China, Japan and South Korea to build 11 vesselsEvergreen's 23,992-teu Ever Ace, which at time of delivery in 2021 was the world's largest container ship.Photo: Port of Tanjung PelepasPolly MartinIrene Ang