Recently, the group successfully passed two ISO management system certifications, "iso14001:2015 environmental management system certification" and "iso45001:2018 occupational health and safety management system certification". Obtaining these two system certifications not only marks that Tramy has reached an advanced level in quality control, scientific management, environmental construction and other management, but also marks another new achievement of Tramy in the process of improving the level of comprehensive management, Tramy EHS management has entered a new stage.