Zhoushan Perfect Marine Service Co., Ltd. is a marine safety service contractor based in Zhoushan, Zhejiang Province, serving vessels at the Zhoushan, Ningbo-Zhoushan, Liuheng, Putuo and Daishan anchorages and at major repair yards in the East China Sea cluster. The workshop is configured around the SOLAS scope for life-saving and fire-fighting equipment, with radio and class-related tightness work added to support periodical surveys. Field crews handle annual and five-yearly servicing of inflatable liferafts, conventional and totally enclosed lifeboats, rescue boats, hydrostatic release units, immersion suits, lifejackets and lifebuoys, together with portable-extinguisher recharging and hydrostatic testing, performance checks on fixed CO2, foam and water-spray systems, fire hose and hydrant pressure testing and breathing-apparatus EEBD and SCBA servicing. Radio and navigation work covers annual GMDSS performance testing, GMDSS equipment service and AIS annual inspection. Class-related scope includes ultrasonic hatch cover tightness testing, watertight integrity verification of doors and penetrations and pressure vessel inspection on cargo and machinery-space equipment. Perfect Marine is listed by several IACS classification societies as a recognised service supplier, with firm-name approvals seen under ABS, Bureau Veritas, China Classification Society and Indian Register of Shipping for the relevant LSA, FFE, radio and tightness categories. Reports issued at the Zhoushan workshop are accepted for SOLAS-mandated annual, intermediate and five-yearly surveys on merchant tonnage flagged with administrations that recognise these classification societies. Coordination between LSA, FFE and class-related work scopes is handled from one work order so multiple periodical items can be closed during a single port call, reducing off-hire time for owners and managers. Spare parts for liferaft canisters, lifeboat release-hooks, hydrostatic release units, extinguisher refills, EEBD and SCBA composite cylinders and CO2 control-station components are held in workshop stock, allowing immediate replacement of expired or non-compliant items at the time of inspection.