The public relations department is mainly responsible for the external brand image packaging of SESA, basically for publicity work, involving the crisis of public relations and so on. PR is SESA’s external window, responsible for the management of SESA’s WeChat public account, and other public platforms through tweets and other publicity methods to introduce and follow up SESA and its activities; At the same time, it is also an official position expression platform to assist the handling of emergencies, and timely release the organization’s handling and response of emergencies to the outside world in a timely manner, so that the public can know the organization’s handling methods in the first time, so as to maintain the image of the organization and help SESA develop more smoothly.