Cosco Shipping Holdings and Shanghai International Port Group plan to buy Orient Overseas (International) Limited (OOIL), the owner of Orient Overseas Container Line (OOCL) for $6.3 billion, creating the second-largest mover of US containerized goods with a fleet of more than 400 ships, totaling a capacity of 2.9 million TEU including current capacity on orders.The two carriers would operate the third-largest mega-ship fleet, and both are and will continue to be members of the Ocean Alliance, with OOCL remaining a separate brand.Cosco earlier this month announced a $272 million profit for the first half, turning around a $1 billion loss in the same period last year, while OOCL reported a $273 million loss in 2016.