T-All Inspection Group Co., Ltd is a Chinese inspection and asset-integrity company that has grown from its base in northwestern China to deliver services in more than twenty countries, with a particular strength in oil and gas, petrochemical and energy infrastructure. The T-All group operates several specialist laboratories worldwide and combines field non-destructive testing teams with engineering services in risk-based inspection, integrity management and corrosion assessment, supported by a workforce of more than six hundred qualified inspectors. Holding API authorisations, CNAS and CMA laboratory accreditations and A-Level Special Equipment NDT qualifications from the Chinese authorities, the firm is one of the larger independent inspection houses in the country. For the marine sector, the company carries out hull and structural non-destructive testing including ultrasonic, magnetic particle, dye penetrant and radiographic methods, with phased-array and TOFD options available for critical welds. The team performs hatch cover ultrasonic tightness testing under IACS UR Z17, watertight integrity verification and condition-monitoring programmes on hulls, decks and topside structures, with reports formatted for class and flag-state acceptance. Underwater hull inspections are coordinated with diving partners through a joint arrangement with IKM Testing UK, which appears alongside the company on ECITB Global's provider listings, allowing combined surface and subsea NDT campaigns. The company is recognised as a service supplier by DNV, so its NDT and in-water survey reports are accepted for classification purposes on merchant and offshore tonnage, complementing its broader presence in pipeline, storage tank and pressure equipment inspection across the global energy industry.