Both the UK-flagged 5,100-teu CMA CGM Florida (built 2008) and the 176,000–dwt bulker Chou Shan (built 2005)suffered major damage in the accident off Shanghai in March 2013.

The UK Marine Accident Investigation Branch(MAIB) said 610 tonnes of heavy fuel oil was spilled from the container vessel.

It found that the French ship’s Filipinosecond officer had altered course to starboard to pass between a group offishing vessels on the port bow and a vessel on a reciprocal course tostarboard.

This