X0202 SCHEDULE 13G 0001896206 XXXXXXXX LIVE Class A Ordinary Shares, par value US$0.0000375 per share 09/16/2026 0001958399 Huachen AI Parking Management Technology Holding Co., Ltd G4645R122 NO.1018 HAIHE ROAD, DUSHANGANG TOWN PINGHU CITY, JIAXING, ZHEJIANG PROVINCE JIAXING F4 314205 Rule 13d-1(c) Alta Partners LLC NY 675000.00 0.00 675000.00 0.00 675000.00 6.5 OO Huachen AI Parking Management Technology Holding Co., Ltd NO.1018 HAIHE ROAD, DUSHANGANG TOWN, PINGHU CITY, JIAXING, ZHEJIANG PROVINCE, JIAXING, CHINA, 314205. Alta Partners LLC 1205 Franklin Avenue, Garden City, New York 11530 New York Limited Liability Company Y 675,000 Class A Ordinary Shares held by the Reporting Person. Does not include 675,000 Class A Ordinary Shares issuable upon exercise of Ordinary Warrants held by the Reporting Person that are not currently exercisable due to the 4.99% beneficial ownership limitation applicable to such warrants. 6.5% 675,000 0 675,000 0 Y N Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Alta Partners LLC /s/ Steven Cohen 10/06/2026