The 80596 dwt boxship CSAV Petorca collided with the 33795 dwt freighter CCNI Rimac at the port of Yangshan Deep Water Port, China.   The CCNI Rimac suffered damage to a cabin and had some minor water ingress.   The CSAV Petorca lost 26 containers which went overboard.  Shanghai Martime Department deployed three vessels to carry out rescue and coordination to salvage the containers.   During an inspection, authorities found smoke coming from a chemical container with a cargo of nitrocellulose which could start a fire.   The container was removed from the CSAV Petorca.    No reports of injuries or pollution being released.