SUPPLEMENTAL ANNOUNCEMENTIN RELATION TODISCLOSEABLE TRANSACTIONS ANDCONNECTED TRANSACTIONS

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.(Incorporated in the Cayman Islands with limited liability) (Stock Code: 01250) SUPPLEMENTAL ANNOUNCEMENT IN RELATION TO DISCLOSEABLE TRANSACTIONS AND CONNECTED TRANSACTIONS Reference is made to the announcements of Shandong Hi-Speed New Energy Group Limited (the “Company”) dated 25 May 2023 4 December 2023 1 February 2024 6 February 2024 (the “Supplemental Announcement”) and 12 March 2024 respectively in relation to the Repurchase Agreements (collectively the “Announcements”). Unless the context otherwise requires capitalized terms used herein shall have the same meanings as those defined in the Announcements.As disclosed in the Supplemental Announcement on 6 February 2024 Thermal Co and each of the Vendors entered into the Supplemental Agreements. The completion of the Repurchases took place in April 2024. Upon completion of the Repurchases the registered capital of Thermal Co was reduced from RMB960000000 to RMB672000000. Thermal Co became an indirect wholly-owned subsidiary of the Company and its financial results will continue to be consolidated into the Company’s financial statements.By Order of the Board Shandong Hi-Speed New Energy Group Limited Wang Xiaodong Chairman Hong Kong 30 May 2024 As at the date of this announcement the Board comprises Mr. Wang Xiaodong Mr. Zhu Jianbiao Mr. Wang Wenbo Mr. Sun Qingwei Ms. Liao Jianrong Mr. Li Li Mr. He Yongbing and Mr. Wang Meng as executive Directors; and Professor Qin Si Zhao Mr. Victor Huang Mr. Yang Xiangliang and Mr. Chiu Kung Chik as independent non-executive Directors.