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Henan Huanghe Whirlwind Co., Ltd — Investor Relations & Filings

Ticker · 600172 ISIN · CNE000000XT8 LEI · 300300HSV10IUQ7WE261 Shanghai Stock Exchange Manufacturing
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Filings indexed 1,749 across all filing types
Latest filing 2026-05-13 Board/Management Inform…
Country CN China
Listing Shanghai Stock Exchange 600172

About Henan Huanghe Whirlwind Co., Ltd

https://www.huanghewhirlwind.com/

Henan Huanghe Whirlwind Co., Ltd. is a major manufacturer specializing in the development and production of superhard materials. The company’s core product line includes synthetic diamond powder, monocrystalline diamonds, and polycrystalline diamond (PCD) composites. It also produces cubic boron nitride (CBN) and various diamond-based tools designed for cutting, grinding, and drilling applications in sectors such as construction, stone processing, and precision engineering. Leveraging high-pressure high-temperature (HPHT) synthesis technology, the firm has expanded its capabilities to include the production of gem-quality lab-grown diamonds. The company maintains an integrated supply chain, focusing on technical innovation and the delivery of high-performance materials for industrial and consumer markets worldwide.

Recent filings

Filing Released Lang Actions
关于选举公司董事长、副董事长及聘任高级管理人员、证券事务代表的公告
Board/Management Information Classification · 90% confidence The document is an official announcement by Henan Yellow River Whirlwind Co., Ltd. regarding the election of the company’s chairman, vice chairman, and the appointment of senior management and securities affairs representatives. It details changes in the board composition and management roles. This fits the definition for Board/Management Information (MANG).
2026-05-13 Chinese
股票交易风险提示性公告
Regulatory Filings Classification · 87% confidence The document is a stock trading risk warning announcement by a listed company regarding abnormal price fluctuations and investor risk alerts. It is a routine regulatory disclosure under exchange rules and does not present financial statements, call transcripts, or management changes. This fits the fallback category for general regulatory announcements and compliance disclosures.
2026-05-13 Chinese
河南黄河旋风股份有限公司2026年第二次临时股东会会议资料
Proxy Solicitation & Information Statement Classification · 85% confidence The document is titled "2026年第二次临时股东会会议资料" and contains detailed meeting materials for an extraordinary shareholders’ meeting, including agenda items, proposals for external investment and asset pledges, meeting logistics, and instructions for shareholder voting. This aligns with materials sent to shareholders to inform them of meeting matters and solicit votes. Therefore, it is a Proxy Solicitation & Information Statement.
2026-05-13 Chinese
第十届董事会第一次会议决议公告
Board/Management Information Classification · 95% confidence The document is an announcement of the 10th Board of Directors’ first meeting resolutions, including election of chairman and vice-chairman, appointment of senior management and committee members, and voting results. This clearly pertains to board and management changes rather than full financial reports or other categories.
2026-05-13 Chinese
河南世纪通律师事务所关于河南黄河旋风股份有限公司2025年度股东会的法律意见书
Regulatory Filings Classification · 81% confidence The document is a legal opinion letter (“法律意见书”) from an external law firm verifying the legality of the company’s 2025 Annual General Meeting procedures and voting results. It is not the AGM presentation itself nor the formal voting results announcement by the company, but rather an attestation by counsel. Under the CERTIFICATION RULE, such officer/lawyer certifications should be classified as a general regulatory filing. Therefore, the appropriate category is Regulatory Filings (RNS).
2026-05-13 Chinese
2025年年度股东会决议公告
Declaration of Voting Results & Voting Rights Announcements Classification · 91% confidence The document is an announcement of the voting results at the company’s 2025 Annual General Meeting (AGM), detailing attendance, each resolution, vote counts, percentages, and whether each motion passed. It does not present the full annual report itself but strictly reports the shareholder vote outcomes. This corresponds to “Declaration of Voting Results & Voting Rights Announcements” (Code: DVA).
2026-05-13 Chinese

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