Guangzhou Hengchuang Testing Technology Service Co., Ltd. IHM Laboratory is a globally leading one-stop laboratory covering 16 hazardous substance tests, and has been accredited by domestic and foreign classification societies such as China Classification Society (CCS). The IHM investigation service for hazardous substances on ships provides investigation, testing, inspection, and certification services for the List of Hazardous Substances on Ships (IHM) in accordance with EU Regulation 1257/2013 and the Hong Kong Convention. Ensure compliance with the convention while guiding shipyards/shipowners to meet the requirements of issuing and signing IHM international certificates and international suitable dismantling certificates by classification societies.

Food Contact Materials (FCM) refer to all materials and products that come into contact with food, including food packaging, food containers, auxiliary materials, equipment, tools, etc. used for processing and preparing food. During the process of FCM coming into contact with food, its components or ingredients (including various additives) may migrate to the food in small amounts under usage conditions. If these migrating substances contain certain toxic and harmful ingredients, it can pose a health hazard to the human body.

As a member unit of the Environmental Monitoring Association, STU is committed to providing services in environmental monitoring, environmental consulting, environmental impact assessment testing, occupational health, and other fields. It has strong technical strength in indoor air, soil, water quality, noise, radiation, and other areas.

Public places are important places for people to entertain and interact, as well as important areas for municipal management. Improving the quality of air and lighting in public places is of great significance for the physical and mental health of the general public.