Announcement of Initial Public Offering and Listing on the ChiNext Market

CEIC (CETC Siyi Technology Co., Ltd.)

Announcement of Initial Public Offering and Listing on the ChiNext Market

Sponsor (Lead Underwriter): Guotai Haitong Securities Co., Ltd.

CETC Siyi Technology Co., Ltd. (hereinafter referred to as the "Issuer," "CEIC," or the "Company") has received approval from the Listing Committee of the Shenzhen Stock Exchange (hereinafter referred to as the "SZSE") for its application for an initial public offering and listing on the ChiNext market (hereinafter referred to as the "Offering"), and has received registration approval from the China Securities Regulatory Commission (hereinafter referred to as the "CSRC") (Zheng Jian Xu Ke [2026] No. 1384). Guotai Haitong Securities Co., Ltd. (hereinafter referred to as "Guotai Haitong," "Sponsor," or "Sponsor (Lead Underwriter)") serves as the sponsor (lead underwriter). The "Prospectus for the Initial Public Offering and Listing on the ChiNext Market of CETC Siyi Technology Co., Ltd." (hereinafter referred to as the "Prospectus") and its attachments are disclosed on the websites designated by the CSRC (Cninfo, www.cninfo.com.cn; CS.com.cn, www.cs.com.cn; CNSTOCK, www.cnstock.com; STCN, www.stcn.com; ZQRB, www.zqrb.cn; JJCKB, www.jjckb.cn; Financialnews.com.cn, www.financialnews.com.cn; Chinadaily.com.cn, www.chinadaily.com.cn) and are available for public inspection at the offices of the Issuer, the SZSE, and the Sponsor (Lead Underwriter).

Investors are requested to pay close attention to the offering method, online and offline subscription and payment procedures, the clawback mechanism, suspension of the offering, and the handling of abandoned shares, and to carefully read the "Announcement on Preliminary Inquiry and Promotion for the Initial Public Offering and Listing on the ChiNext Market of CETC Siyi Technology Co., Ltd." (hereinafter referred to as the "Announcement on Preliminary Inquiry and Promotion") published today. Details are as follows:

1. The offline subscription date and online subscription date for this Offering are both August 28, 2026 (T-day). The offline subscription time is 9:30-15:00, and the online subscription time is 9:15-11:30 and 13:00-15:00. Investors are not required to pay subscription funds when participating in online and offline subscriptions on August 28, 2026 (T-day).

2. All offline investors intending to participate in the preliminary inquiry who meet the relevant investor criteria must submit verification materials and asset proof materials via the Guotai Haitong reporting system (URL: https://ipoinvestor.gtht.com) before 12:00 noon on August 24, 2026 (T-4 day) in accordance with relevant requirements.

3. This Offering adopts a combination of targeted placement to investors participating in strategic placement (hereinafter referred to as "Strategic Placement"), inquiry-based placement to qualified offline investors (hereinafter referred to as "Offline Offering"), and pricing-based issuance to public investors holding non-restricted A-share market value and non-restricted depository receipts market value in the Shenzhen market (hereinafter referred to as "Online Offering").

The Strategic Placement, preliminary inquiry, and online/offline offering are organized and implemented by the Sponsor (Lead Underwriter). The preliminary inquiry and Offline Offering are conducted through the SZSE offline issuance electronic platform (https://eipo.szse.cn) and the China Securities Depository and Clearing Corporation Shenzhen Branch registration and settlement platform. The Online Offering is conducted through the SZSE trading system. Online investors are requested to carefully read this announcement and the "Implementation Rules for Online Issuance of Initial Public Offering of Shares in the Shenzhen Market" (Shen Zheng Shang [2018] No. 279) (hereinafter referred to as the "Implementation Rules for Online Issuance") published on the SZSE website.