[Chang Chun] Company completes filing for its second domestic unsecured convertible bond issuance under CSRC's 'Trial Measures for the Administration of Overseas Issuance and Listing of Securities by Domestic Enterprises'

1. Date of occurrence: 2023/06/09 2. Company Name: Chang Chun Petrochemical Co., Ltd. 3. Relationship with the Company (Enter 'Parent Company' or 'Subsidiary'): Parent Company 4. Proportion of mutual shareholding: Not applicable 5. Reason for occurrence: In response to the 'Trial Measures for the Administration of Overseas Issuance and Listing of Securities by Domestic Enterprises' issued by the China Securities Regulatory Commission. 6. Countermeasures: In order to issue its second domestic unsecured convertible bond, the Company has completed the filing with the China Securities Regulatory Commission on 2023/06/09, in accordance with the provisions of the 'Trial Measures for the Administration of Overseas Issuance and Listing of Securities by Domestic Enterprises' issued by the China Securities Regulatory Commission. 7. Other matters that need to be stated (If the subject of the event or resolution is a publicly issued company or above, and this major information also meets the conditions specified in Article 7, Paragraph 9 of the Rules Governing the Enforcement of the Securities Transaction Act regarding matters that have a material impact on shareholders' equity or securities prices): None