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SF DIAMOND CO.,LTD. — Investor Relations & Filings

Ticker · 300179 ISIN · CNE100001021 Shenzhen Stock Exchange Manufacturing
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Filings indexed 1,623 across all filing types
Latest filing 2026-05-20 Transaction in Own Shar…
Country CN China
Listing Shenzhen Stock Exchange 300179

About SF DIAMOND CO.,LTD.

https://www.sf-diamond.com

SF DIAMOND CO.,LTD. specializes in the research, development, and manufacturing of superhard materials and related products. The company's core portfolio includes Polycrystalline Diamond (PCD) and Polycrystalline Cubic Boron Nitride (PCBN) cutters and blanks. These materials are engineered for high-performance applications in demanding sectors such as oil and gas exploration, coal mining, stone processing, and precision metalworking. SF Diamond focuses on providing solutions characterized by exceptional hardness, wear resistance, and thermal stability. Its products are utilized in the production of cutting tools, drill bits, and wear-resistant components for the automotive, aerospace, and energy industries. The company emphasizes technological innovation and quality control to maintain its position as a global supplier of advanced composite superhard materials.

Recent filings

Filing Released Lang Actions
关于第六期员工持股计划第一批股份锁定期届满的提示性公告
Transaction in Own Shares Classification · 52% confidence The document is a formal disclosure (提示性公告) regarding the expiration of the lock‐up period for the first batch of shares under the company’s sixth employee share ownership plan. It details the transfer of treasury shares (previously repurchased) into the employee plan, the unlocking mechanics, and subsequent handling of these shares. This falls under the category of transactions in the company's own shares (i.e., disposal of treasury shares into the employee plan), matching the definition of POS (Transaction in Own Shares).
2026-05-20 Chinese
关于控股子公司对外投资的进展公告
Capital/Financing Update Classification · 88% confidence The document is an announcement by a listed company regarding the progress of an external investment by its controlling subsidiary, including the formation and registered capital of a new project company. It is not a financial report, regulatory cert letter, dividend notice, or M&A bid, but rather an update on capital structuring and financing for a major project. This aligns with the “Capital/Financing Update (CAP)” category.
2026-05-19 Chinese
关于公司股东、高级管理人员减持计划期限届满暨实施结果的公告
Director's Dealing Classification · 88% confidence The document is an official exchange announcement detailing the expiration and results of a planned share reduction by a company’s >5% shareholder and senior management (insider share sales by a director and a senior manager). It reports actual sale volumes, prices, and pre-/post-holding levels; this corresponds to a personal insider transaction report. Therefore it fits the “Director's Dealing” category (DIRS).
2026-05-11 Chinese
董事会审计委员会对会计师事务所2025年度履行监督职责情况的报告
Audit Report / Information Classification · 95% confidence The document is a detailed report from the Board Audit Committee regarding the performance and supervision of the external audit firm (信永中和会计师事务所) for the fiscal year 2025. It discusses the audit firm's qualifications, independence, audit procedures, communication with management, and overall evaluation of the audit work done for the company's 2025 financial statements. The document is not the audit report itself but a supervisory report on the audit firm's performance and oversight activities. It is not an announcement or a brief notice but a substantive report on audit oversight. This fits the definition of an Audit Report / Information (AR), which includes standalone audit reports and results of internal or regulatory oversight related to audits, excluding full annual reports. The document length is 3235 characters, which is sufficient for a detailed report but not a full annual report. Therefore, the classification is AR with high confidence.
2026-04-01 Chinese
关于使用部分自有资金进行委托理财的公告
Capital/Financing Update Classification · 95% confidence The document is an announcement by Henan Sifangda Superhard Materials Co., Ltd. regarding the use of part of its own funds for entrusted financial management. It details the investment purpose, amount, method, term, source of funds, risk analysis, and control measures. The document includes resolutions from the board and audit committee meetings approving this financial activity. There are no financial statements or detailed financial performance data presented. The document is a formal disclosure of a capital/financing update related to the company's use of funds for financial products, not a full financial report or earnings release. It fits the Capital/Financing Update (CAP) category as it concerns company fundraising or capital structure changes, specifically the use of funds for entrusted financial management.
2026-04-01 Chinese
独立董事2025年度述职报告（杜海波）
Board/Management Information Classification · 95% confidence The document is a detailed annual performance report of an independent director for the year 2025, describing the director's duties, attendance at meetings, committee work, communication with auditors, and evaluation of company governance and financial reporting. It includes no financial statements or direct financial data but focuses on the director's role and activities in corporate governance and oversight. This type of document is not an annual report, audit report, or financial report but rather a management or board-related report on director duties and governance. Therefore, it fits best under Board/Management Information (MANG). The document length (6552 characters) and content confirm it is a full report, not a brief announcement or certification.
2026-04-01 Chinese

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