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Yantai Zhenghai Bio-Tech Co., Ltd. — Investor Relations & Filings

Ticker · 300653 ISIN · CNE100002NZ1 Shenzhen Stock Exchange Manufacturing
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Filings indexed 967 across all filing types
Latest filing 2026-03-30 Annual Report
Country CN China
Listing Shenzhen Stock Exchange 300653

About Yantai Zhenghai Bio-Tech Co., Ltd.

https://www.zhbio.com

Yantai Zhenghai Bio-Tech Co., Ltd. specializes in the research, development, production, and sale of regenerative medicine materials. The company focuses on tissue engineering and biomaterials to provide solutions for clinical repair and functional reconstruction. Its core product portfolio includes the Heal-All oral repair membrane, absorbable hard cerebral (spinal) membrane patches, and skin repair membranes. These products are widely utilized in stomatology, neurosurgery, and orthopedics. The company leverages advanced processing technologies to ensure biocompatibility and safety in its medical devices. By integrating research with clinical needs, it develops innovative bone repair materials and other biological scaffolds designed to facilitate natural tissue regeneration.

Recent filings

Filing Released Lang Actions
2025年度财务决算报告
Annual Report Classification · 95% confidence The document is titled '2025 年度财务决算报告' which translates to '2025 Annual Financial Settlement Report'. It contains detailed financial statements including balance sheets, profit statements, and explanations of significant changes year-over-year. The report is audited by a professional accounting firm, indicating it is a formal financial report. The content covers a full fiscal year (2025) and includes comprehensive financial data and analysis, not just highlights or announcements. The document length is 3115 characters, which is relatively short but contains substantive financial data, so it is not merely an announcement or certification. Therefore, this document fits the definition of an Annual Report (10-K) as it covers the company's full financial performance for the year 2025. FY 2025
2026-03-30 Chinese
2025年度独立董事述职报告（宋希亮）
Board/Management Information Classification · 95% confidence The document is titled '独立董事述职报告' which translates to 'Independent Director's Work Report' for the year 2025. It details the independent director's duties, attendance at board and committee meetings, communication with internal audit and accounting firms, and oversight activities. It does not contain financial statements or quarterly/annual financial results but is a narrative report on the director's activities and governance role. This type of document is a management or governance-related report rather than a financial report or announcement. It is not an Annual Report (10-K), Interim Report (IR), or Audit Report (AR). It is also not a regulatory filing or announcement of voting results. The content fits best under Board/Management Information (MANG) as it relates to the independent director's role and activities within the board and governance structure. The document length is under 5,000 characters, but it is a substantive report, not a mere announcement. Therefore, the classification is MANG with high confidence.
2026-03-30 Chinese
2025年度独立董事述职报告（李江华）
Board/Management Information Classification · 95% confidence The document is titled as an "Independent Director's Work Report" for the year 2025 from a company. It details the independent director's duties, attendance at board and shareholder meetings, communication with auditors, and oversight activities during the year. It references compliance with laws and regulations, internal control reports, audit firm engagement, and other governance matters. The document is a detailed report on the independent director's activities and oversight for the year, not an announcement or a brief summary. It is not a full annual report or audit report but a specific report on board/management information related to the independent director's role and activities. Therefore, the most appropriate classification is Board/Management Information (MANG). The document length is 4015 characters, which is sufficient for a detailed report but not a full annual report or audit report. No indication that this is a call transcript, earnings release, or other categories. Hence, classification as MANG is appropriate with high confidence.
2026-03-30 Chinese
2025年度社会责任报告
Environmental & Social Information Classification · 100% confidence The document is titled "烟台正海生物科技股份有限公司2025 年度社会责任报告" which translates to "Yantai Zhenghai Biotechnology Co., Ltd. 2025 Annual Social Responsibility Report." The content extensively covers the company's social responsibility activities, including environmental protection, employee rights, supplier and customer relations, public relations, and social welfare initiatives. It references compliance with social responsibility and sustainability guidelines, and includes detailed sections on environmental management, employee welfare, and community engagement. There is no indication that this is a financial report, earnings release, or regulatory filing. The document is a comprehensive report on Environmental, Social, and Governance (ESG) factors and corporate social responsibility performance for the year 2025. Therefore, it fits the category of Environmental & Social Information (Code: SR). The document length (over 14,000 characters) and detailed content confirm it is the report itself, not just an announcement or summary.
2026-03-30 Chinese
内部控制审计报告
Audit Report / Information Classification · 95% confidence The document is titled '内部控制审计报告' which translates to 'Internal Control Audit Report'. It references auditing standards and the responsibility of the company's board and auditors regarding internal control over financial reporting as of December 31, 2025. The document contains an auditor's opinion on the effectiveness of internal controls, which is typical of a standalone audit report rather than a full annual report or interim report. The length is short (718 characters), but the content is substantive and not merely an announcement or certification. Therefore, it fits the category of an Audit Report / Information (AR). FY 2025
2026-03-30 Chinese
关于召开2025年年度股东会的通知
AGM Information Classification · 95% confidence The document is a detailed notice about the convening of the 2025 Annual General Meeting (AGM) of the company, including the meeting time, location, agenda items, voting procedures, and registration details. It does not contain the actual annual report, financial statements, or results but rather the announcement and procedural information for the upcoming AGM. The document is about the meeting itself and the proposals to be voted on, not the report or results of the meeting. Therefore, it fits the category of AGM Information (AGM-R). The document length is about 4952 characters, which is consistent with a detailed meeting notice rather than a full report.
2026-03-30 Chinese

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