CTI provides aviation-related radioactive material testing services for rail transit ships, in accordance with the International Maritime Organization's 2009 Hong Kong Convention on International Safety and Environmentally Sound Ship Recycling and the Marine Environmental Protection Committee meeting resolution (MEPC.269(68)) 2015 Guidelines for the Compilation of Hazardous Substances Inventory and EU Regulation No. 1257/2013 and customer requirements to detect the content of radioactive substances in samples.