Jointly issued by the Ministry of ecological environment, the Ministry of Commerce and the General Administration of Customs, the import and export license for HFC substances will be implemented from November 1, 2021. All enterprises engaged in the import and export of HFC substances must submit an application in accordance with the provisions of the measures for the administration of the import and export of ozone depleting substances. After being approved by the national office for the administration of the import and export of ozone depleting substances, they shall apply for import and export licenses from the Ministry of Commerce or the license issuing agencies entrusted by the Ministry of Commerce, and go through customs clearance procedures on the presentation of the HFC import and export licenses.