Suzhou Tbk Testing Technology Co., Ltd. is an independent maritime testing laboratory based in Suzhou, Jiangsu Province, providing ballast water, environmental and hazardous-materials testing services to vessels calling at the Yangtze River Delta. The TBK laboratory works to the analytical scope set out under the IMO Ballast Water Management Convention, performing commissioning and indicative testing of ballast water management systems to D-2 standards, including viable organism counts in the more than fifty micrometre and ten to fifty micrometre size classes, indicator microbe analysis and physicochemical parameter measurement. Sampling teams mobilise to terminals and anchorages at Shanghai, Ningbo, Zhoushan, Taicang and Suzhou for BWMS commissioning, post-installation acceptance and operational sampling work, with chain-of-custody documentation and accredited analytical methods used throughout. Inventory of Hazardous Materials services include shipboard sampling, laboratory analysis and IHM Part I, II and III documentation in line with the Hong Kong Convention and the EU Ship Recycling Regulation, covering asbestos, ozone-depleting substances, PCBs, heavy metals, brominated flame retardants and PFOS. Reports are formatted to IACS guidelines and supplied to owners, managers and recycling yards. Underwater hull inspection in support of in-water surveys is coordinated with diving subcontractors, allowing single-point delivery of compliance evidence. Suzhou Tbk Testing Technology Co., Ltd. is recognised as a service supplier by Bureau Veritas and DNV, allowing its laboratory and field reports to be used in classification and flag-state acceptance processes for ballast water and IHM compliance on newbuilds and operating tonnage repaired or delivered at Yangtze River Delta yards.