CTI provides aviation-related cadmium testing services for rail transit ships, in accordance with the International Maritime Organization's 2009 Hong Kong International Convention on Safe and Environmentally Sound Recycling of Ships and the Marine Environmental Protection Committee meeting resolution (MEPC.269(68)) 2015 Harmful The Guidelines for the Preparation of Substance Inventories and the regulations of EU Regulation No. 1257/2013 and customer requirements to detect the content of cadmium and cadmium compounds in samples.