Asian shipping companies are offering mega bonuses to employees amid a boom in freight rates, with China’s state-owned giant Cosco Shipping Holdings Co (中遠海運控股) doling out as much as 60 percent of a manager’s annual salary, the Caixin Global news service reported. Cosco is among shipping companies distributing huge year-end bonuses to workers, Caixin said, citing employees at the company. Other shippers are also distributing generous rewards. A worker at Taiwan’s Evergreen Marine Corp (長榮海運) received a year-end bonus that was nearly 40 times their monthly salary, it ...