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

Ticker · 300653 ISIN · CNE100002NZ1 Shenzhen Stock Exchange Manufacturing
Open in API
Filings indexed 968 across all filing types
Latest filing 2025-04-14 Audit Report / Informat…
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
监事会对公司2024年度内部控制自我评价报告的审核意见
Audit Report / Information Classification · 95% confidence The document is a supervisory board's review opinion on the company's internal control self-assessment report for the year 2024. It references internal control evaluation and compliance with laws and regulations but does not contain full financial statements or detailed financial data. The document is relatively short (757 characters) and appears to be an audit or review opinion rather than a full annual report or interim report. It fits best under Audit Report / Information (AR) as it is a standalone audit-related opinion on internal controls, not the full annual report or other types of filings. FY 2024
2025-04-14 Chinese
监事会决议公告
Regulatory Filings Classification · 95% confidence The document is titled '监事会决议公告' which translates to 'Supervisory Board Resolution Announcement'. It details resolutions passed by the supervisory board regarding various reports and proposals related to the company's 2024 fiscal year, including the annual report, financial statements, profit distribution plan, internal control self-evaluation report, and audit firm reappointment. The document repeatedly states that the detailed reports are available on the China Securities Regulatory Commission designated disclosure website, indicating this document itself is an announcement of the supervisory board's resolutions rather than the full reports. The document length is 2061 characters, which is relatively short and consistent with an announcement rather than a full report. Therefore, this document is best classified as a Regulatory Filing (RNS) because it is an official announcement of supervisory board resolutions and references other detailed reports without containing the full financial data or reports themselves.
2025-04-14 Chinese
审计委员会对公司续聘审计机构的审核意见
Audit Report / Information Classification · 95% confidence The document is a formal opinion from the Audit Committee regarding the reappointment of the company's audit firm for the fiscal year 2025. It references regulatory guidelines and the company's internal rules but does not contain financial statements or detailed audit results. The document is short (488 characters) and focuses on the audit firm's reappointment rather than presenting an audit report itself. Therefore, it fits the category of an Audit Report / Information (AR), which includes standalone audit-related opinions and information excluding full annual reports. FY 2025
2025-04-14 Chinese
2024年度独立董事述职报告（许卉）
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 2024. It details the independent director's duties, attendance at board and committee meetings, communication with auditors, and oversight activities during the year. The content focuses on the director's responsibilities, governance, and compliance with laws and regulations, rather than presenting financial statements or audit opinions. The document length is 3642 characters, which is relatively short and more consistent with a report or statement rather than a full annual report or audit report. It is not an announcement or a brief notice but a detailed report on the independent director's work and governance role. This type of document fits best under Board/Management Information (MANG), as it relates to board members' activities and governance reporting rather than financial results or audit findings.
2025-04-14 Chinese
2024年内部控制自我评价报告
Audit Report / Information Classification · 95% confidence The document is titled '2024年度内部控制评价报告' which translates to '2024 Annual Internal Control Evaluation Report' for 烟台正海生物科技股份有限公司. It discusses the evaluation of the company's internal control effectiveness as of December 31, 2024, including detailed descriptions of internal control scope, standards, and conclusions about the absence of significant deficiencies. The document is comprehensive, contains substantive content about internal control evaluation, and is not merely an announcement or certification. It is a standalone report focused on internal control evaluation, which aligns with the definition of an Audit Report / Information (AR) as it relates to audit and internal control results but is not a full annual report. Therefore, the appropriate classification is AR with high confidence. FY 2024
2025-04-14 Chinese
2024年度监事会工作报告
Management Reports Classification · 95% confidence The document is titled '监事会工作报告' which translates to 'Supervisory Board Work Report' for the year 2024. It details the supervisory board's activities, meetings, oversight of financial reports, internal controls, compliance with laws, and plans for 2025. It references the review and approval of the 2023 annual report, financial statements, and internal control reports, but the document itself is a report on the supervisory board's work and oversight activities rather than the full annual report or financial statements. The length is 2640 characters, which is relatively short and consistent with a supervisory board report rather than a full annual report. This type of document fits best under the category of Management Reports (MDA), as it provides management's detailed explanation of oversight, governance, and financial supervision activities rather than the full financial data or audit opinions alone. It is not an announcement or certification, so RNS or RPA are not appropriate. Therefore, the classification is MDA with high confidence.
2025-04-14 Chinese

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