Management Measures for Delayed and Exempted Information Disclosure of CRBB

Securities Code: 300374 Securities Abbreviation: CRBB Announcement No.: 2026-018 CRBB Co., Ltd. Management Measures for Delayed and Exempted Information Disclosure Chapter 1 General Provisions Article 1 To standardize the delayed and exempted information disclosure activities of CRBB Co., Ltd. (hereinafter referred to as the "Company") and its information disclosure obligors (hereinafter collectively referred to as "Information Disclosure Obligors"), strengthen information disclosure supervision, and protect the legitimate rights and interests of investors, in accordance with the "Securities Law of the People's Republic of China" (hereinafter referred to as the "Securities Law"), the "Code of Corporate Governance for Listed Companies," the "Measures for Information Disclosure Management of Listed Companies," the "Regulations on Delayed and Exempted Information Disclosure of Listed Companies," the "Shenzhen Stock Exchange GEM Stock Listing Rules," and the "Shenzhen Stock Exchange Listed Company Self-Regulatory Supervision Guidelines No. 2 — Normative Operation of GEM Listed Companies," and other laws, administrative regulations, departmental rules, normative documents, and the Articles of Association of CRBB Co., Ltd. (hereinafter referred to as the "Articles of Association"), and in conjunction with the Company's actual situation, these Measures are formulated. Article 2 This measure applies to the Company and other Information Disclosure Obligors for delaying or exempting the disclosure of temporary reports, and for delaying or exempting the disclosure of information required or requested by the China Securities Regulatory Commission (hereinafter referred to as the "CSRC") and the Shenzhen Stock Exchange (hereinafter referred to as the "SZSE") in periodic reports and temporary reports. Article 3 The Company and other Information Disclosure Obligors shall disclose information truthfully, accurately, completely, timely, and fairly. They shall not abuse the delayed or exempted disclosure provisions to evade information disclosure obligations, mislead investors, or engage in insider trading, market manipulation, and other illegal activities. Article 4 The Company and other Information Disclosure Obligors shall prudently determine matters of delayed or exempted information disclosure and implement them after completing internal approval procedures. Article 5 The Company and other Information Disclosure Obligors shall prudently assess whether the information to be disclosed falls under circumstances where delayed or exempted disclosure is permitted by relevant laws, regulations, and the SZSE's relevant business rules, and shall accept the SZSE's supervision over relevant delayed or exempted information disclosure matters. Chapter 2 Scope of Delayed and Exempted Information Disclosure Article 6 The Company and other Information Disclosure Obligors shall be exempted from disclosure according to law if they have sufficient and conclusive evidence proving that the information to be disclosed involves state secrets or other matters that, if disclosed, may violate national secrecy regulations and management requirements (hereinafter collectively referred to as "State Secrets"). Article 7 The Company and other Information Disclosure Obligors have an obligation to protect state secrets and shall not disclose state secrets through information disclosure, investor interaction, press releases, interviews, or any other means. They shall not use the pretext of information being confidential for business promotion. The Company's Chairman and Secretary of the Board shall enhance their awareness of protecting state secrets and ensure that the disclosed information does not violate national secrecy regulations. Article 8 If the information to be disclosed by the Company and other Information Disclosure Obligors involves trade secrets or confidential business information (hereinafter collectively referred to as "Trade Secrets"), and meets one of the following circumstances, and has not yet been publicly disclosed or leaked, it may be delayed or exempted from disclosure: (1) It involves core technology information, etc., the disclosure of which may lead to unfair competition; (2) It involves the Company's own business information, or the business information of customers, suppliers, or others, the disclosure of which may infringe upon the trade secrets of the Company or others, or seriously harm the interests of the Company or others; (3) O