CTI provides testing services for organotin compounds related to rail transit ships and aviation, 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 The Guidelines for Compilation of Annual Hazardous Substances Inventory and Regulations of European Union No. 1257/2013 and customer requirements to detect the content of organotin compounds in samples.