Bon Ocean Shipping Service (Zhoushan) Co., Ltd is based in Dinghai District of Zhoushan, Zhejiang Province, the bunkering and ship-supply hub at the mouth of the Yangtze. The company is certified for the inspection and maintenance of fire-extinguishing equipment and systems and for the servicing of self-contained breathing apparatus used on board commercial vessels. Recurring scope reported under classification society KR covers periodical testing of fire-fighting equipment, recharging of portable fire extinguishers, testing of fire hoses and hydrants, and the inspection and maintenance of EEBD and SCBA breathing sets. Bon Ocean serves vessels calling Zhoushan and the adjacent Ningbo-Zhoushan port area, where it provides on-board servicing during port stays rather than yard repairs. The company is one of several specialised fire-safety and life-saving service providers concentrated in the Zhoushan agency cluster that grew around the port's bunker and repair traffic. Its corporate email under bonocean.com.cn confirms a dedicated company domain rather than a generic mailbox, and the Dinghai District address situates the business close to the main Zhoushan anchorage areas used for crew-change and supply calls.