Chongqing Jianshe Vehicle System Co., Ltd. Summary of the Semi-Annual Report 2023 Stock code: 200054 Stock Abbreviation: Jianshe Vehicle B Announcement No.: 2023-054 Chongqing Jianshe Vehicle System Co., Ltd. Summary of the Semi-Annual Report 2023 1. Important notes This summary of the Semi-Annual Report is quoted out of the full text of the Annual Report. Investors desirous to understand entirely the Company's operation results, financial position and future development planning are advised to carefully read the full text of the Semi-Annual Report which is published in the medium designated by CSRC. All the directors attended the board meeting for the review of this Report. Non-standard auditor’s opinion □ Applicable √Not applicable Preliminary plan for profit distribution to the common shareholders or turning the capital reserve into the share capital for the reporting period, which has been reviewed and approved at the board meeting □ Applicable √Not applicable The company will distribute no cash dividends or bonus shares and has no reserve capitalization plan. The preference share profit distribution pre-plan approved by the Board of Directors □ Applicable √Not applicable II. Basic information about the company 1. Company profile Jianshe Vehicle B Stock abbreviation Stock code 200054 Stock exchange for listing Shenzhen Stock Exchange Contact person and contact Board secretary Securities affairs Representative manner Name Zhang Hushan Li Wenling No.1 Jianshe Road, Huaxi Industrial Zone, No.1 Jianshe Road, Huaxi Industrial Zone, Office address Ba’nan District , Chongqing Ba’nan District , Chongqing Tel 023-66295333 023-66295333 E-mail cqjsmc@jianshe.com.cn cqjsmc@jianshe.com.cn 2. Major accounting data and financial indicators May the Company make retroactive adjustment or restatement of the accounting data of the previous years □ Yes √ No Same period of last Reporting period YOY+/-(%) year Operating income(Yuan) 216,587,683.76 239,131,462.84 -9.43% Net profit attributable to the shareholders of the -43,310,678.15 13,405,938.22 -423.07% listed company(Yuan) 1 Chongqing Jianshe Vehicle System Co., Ltd. Summary of the Semi-Annual Report 2023 Net profit after deducting of non-recurring gain/loss attributable to the shareholders of listed -44,554,814.82 -28,179,669.74 -58.11% company(Yuan) Cash flow generated by business operation, net 20,778,778.36 31,389,232.50 -33.80% (Yuan) Basic earning per share(Yuan/Share) -0.3628 0.1123 -423.06% Diluted gains per share(Yuan/Share) -0.3628 0.1123 -423.06% Weighted average ROE(%) -48.16% 13.30% -61.46% As at the end of the As at the end of last YOY+/-(%) reporting period year Gross assets (Yuan) 838,233,278.50 896,911,569.17 -6.54% Shareholders’ equity attributable to shareholders 68,755,429.09 111,091,284.68 -38.11% of the listed company(Yuan) 3.Shareholders and shareholding In Shares Total Number of common Number of shareholders of preferred shareholders at the end of the 6,919 stocks of which voting rights recovered 0 reporting period in the report period(If any)(See Note 8) Shareholdings of Top 10 shareholders Proporti Number or share Amount of pledged/frozen Shareholders on of Nature of Number of shares shares restricted shares shareholder held at period -end State of Amou held share nt (%) held China Military State-owned legal Equipment Group 71.13% 84,906,250.00 84,906,250.00 person Co., Ltd. Domestic natural Gu Zuocheng 1.89% 2,261,000 2,218,750.00 person Anhui Hengsheng Investment Domestic non-state- 1.47% 1,750,000.00 1,750,000.00 Development Co., owned legal person Ltd. Domestic natural Xu Yuanhui 0.84% 999,999.00 0 person Domestic natural Liu Dan 0.74% 879,376.00 0 person Domestic natural Chen Xinqiang 0.51% 612,400.00 0 person CORE PACIFIC- YAMAICHI Overseas Legal 0.51% 605,650.00 0 INTERNATIONAL person (H.K.) LIMITED Domestic natural Zhang Meilan 0.43% 513,560.00 0 person Domestic natural Feng Yonghui 0.42% 500,000.00 500,000.00 person Domestic natural Li Jianping 0.37% 438,950.00 0 person There isn’t any associated relationship between the sponsoring shareholder and the other shareholders among the top-10 list. None of Explanation on associated relationship among the them are regarded as ‘Acting in concert’ in accordance with ‘The aforesaid shareholders rules of information disclosure on change of shareholding.’ Foreign shareholders are unknown for their condition of ‘Associated relationship’ and ‘Acting in concert’. 2 Chongqing Jianshe Vehicle System Co., Ltd. Summary of the Semi-Annual Report 2023 Explanation on shareholders participating in the margin Not applicable trading business(if any ) 4.Changing of controlling shareholder and practical controller of the Company. Change of holding shareholder □ Applicable √ Not applicable No change of holding shareholder in the report period. Change of substantial controller □ Applicable √ Not applicable No change of substantial controller in the report period. 5.Number of preference shareholders and shareholdings of top 10 of them □ Applicable √ Not applicable No preference shareholders in the reporting period 6. Corporate bonds that existed on the date when this Report was authorized for issue □ Applicable √ Not applicable III. Significant events In the first half of the year, in accordance with the provisions of The Company Law and the Articles of Association, the Board of Directors and the Board of Supervisors of the Company completed the election (for details, please refer to the Company's announcementsNo.021-2023-and No.022-2023on April 29, 2023). At present, the new board of directors and the new board of supervisors have performed their duties normally. Chairman of the Board: Yan Xuechuan Chongqing Jianshe Vehicle System Co., Ltd. July 29,2023 3