Lucas GC Ltd

PROXY SOLICITATION

This Proxy Statement is furnished in connection with the solicitation of proxies by the board of the directors (the “Board”) of Lucas GC Limited (the “Company,” “we,” “us,” or “our”) to be held on October 2, 2026 at 9:00 a.m., Eastern Time (9:00 p.m. Beijing Time on October 2, 2026), and at any adjournment or postponement thereof. The EGM is a virtual shareholder meeting and will be held via a live webcast. There will be no physical meeting. Shareholders will be able to access the virtual EGM, vote their shares and submit their questions during the meeting by registering in advance at https://meeting.vstocktransfer.com/LUCASOCT26. A Zoom account is required to register. Additional instructions regarding voting are listed on the proxy card.

Only holders of record of the Class A ordinary shares, par value US$0.025 each, of the Company and Class B ordinary shares par value US$0.025 each, of the Company at the close of business on September 10, 2026 (the “Record Date”) are entitled to attend and vote at the EGM or at any adjournment thereof. The presence physically or by proxy of one or more shareholders holding Class A ordinary shares and Class B ordinary shares which carry in aggregate not less than one-third of all Ordinary Shares entitled to vote as of the Record Date shall form a quorum.

Any shareholder giving such a proxy has the power to revoke it at any time before it is voted. Written notice of such revocation should be forwarded directly to the Chairman of the Board, at the above stated address. Proxies may be solicited through the mails or direct communication with certain shareholders or their representatives by Company officers, directors, or employees, who will receive no additional compensation therefor.

If the enclosed proxy is properly executed and returned, the shares represented thereby will be voted in accordance with the directions thereon and otherwise in accordance with the judgment of the persons designated as proxies. Any proxy on which no direction is specified will be voted in favor of the actions described in this Proxy Statement.

The Company will bear the entire cost of preparing, assembling, printing and mailing this Proxy Statement, the accompanying proxy form, and any additional material that may be furnished to shareholders. The date on which this Proxy Statement and the accompanying Proxy Form will first be mailed or made available to the Company’s shareholders is on or about September 25, 2026.

We have elected to provide access to our proxy materials by sending you this full set of proxy materials, including the notice of our EGM, this Proxy Statement and a proxy card to shareholders.

Your vote is important. Whether or not you expect to attend the EGM, you are urged to complete, sign, date and return the accompanying proxy form as promptly as possible to ensure your representation at such meeting. Shareholders who execute proxies retain the right to revoke them at any time prior to the voting thereof, and may nevertheless vote at the EGM. If you hold your shares in street name and wish to vote your shares at the EGM, you should contact your broker, bank, custodian or other nominee holder about getting a proxy appointing you to vote your shares.