Shanghai Juerui Maritime Technology Co., Ltd. Yangzhou Branch is a class-approved technical service provider headquartered in Shanghai with branch operations based in Yangzhou, Jiangsu Province. The branch delivers specialised engineering and measurement work for ships at the shipyards and quays of the lower Yangtze River corridor, drawing on the parent firm's expertise in onboard performance testing and environmental compliance. Core activities centre on noise, vibration and acoustic measurement programmes for newbuilds and ships in service, including shipboard vibration analysis, rotating machinery balancing assignments and structure-borne noise surveys carried out in accordance with classification society protocols. Engineers also undertake ballast water management system commissioning, validation testing and after-sales support for vessels installing or maintaining type-approved BWMS units to meet IMO D-2 discharge standards. Complementing these workshop and onboard services, dive teams perform in-water hull, propeller and rudder surveys as part of underwater inspection scopes accepted in lieu of drydocking. The branch operates within a directory of suppliers recognised by Lloyd's Register, Bureau Veritas, ClassNK, ABS, DNV and Korean Register, which positions Shanghai JueRui Maritime Technology as a multi-class vendor for owners moving tonnage through Yangzhou, Taizhou and neighbouring yards. Reporting follows survey practice familiar to flag administrations and major P&I clubs, with deliverables packaged for direct submission to attending surveyors. Through this combination of measurement engineering, environmental compliance work and underwater intervention, the Yangzhou branch supports drydocking windows, periodical surveys and special projects across bulk carriers, tankers, container vessels and offshore support craft trading the East China coast.