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YANGTZE OPTICAL ELECTRONIC CO., LTD. — Investor Relations & Filings

Ticker · 688143 ISIN · CNE100005VV6 LEI · 836800GD4SM8LNE16987 Shanghai Stock Exchange Manufacturing
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Filings indexed 610 across all filing types
Latest filing 2026-05-22 Declaration of Voting R…
Country CN China
Listing Shanghai Stock Exchange 688143

About YANGTZE OPTICAL ELECTRONIC CO., LTD.

https://en.yoec.com.cn/

YANGTZE OPTICAL ELECTRONIC CO., LTD. (YOEC) specializes in the research, development, and manufacturing of specialty optical fibers and high-precision optical components. The company's core product portfolio includes polarization-maintaining fibers, fiber optic gyroscope (FOG) coils, and specialty optical cables. YOEC provides vertically integrated solutions, encompassing the entire production cycle from fiber preforms and drawing to the winding of precision coils. Its products are primarily utilized in high-end sensing, aerospace, defense, and telecommunications applications. The company also develops specialized equipment for fiber processing and testing, ensuring high performance and reliability in demanding environments. By focusing on advanced optical technologies, YOEC supports the development of inertial navigation systems and sophisticated fiber-optic sensing networks.

Recent filings

Filing Released Lang Actions
湖北乾行律师事务所关于武汉长盈通光电技术股份有限公司2025年年度股大东会的法律意见书
Declaration of Voting Results & Voting Rights Announcements Classification · 82% confidence The document is a legal opinion letter (法律意见书) issued by a law firm regarding the convening procedures, participant qualifications, and detailed vote results of the company’s 2025 Annual General Meeting. It provides official shareholder voting outcomes for each resolution. This aligns with the Definition of “Declaration of Voting Results & Voting Rights Announcements” (DVA), which covers official results from shareholder votes at general meetings.
2026-05-22 Chinese
2025年年度股东会决议公告
Declaration of Voting Results & Voting Rights Announcements Classification · 95% confidence The document is titled “2025年年度股东会决议公告” and provides detailed attendance information, each proposal voted on, voting counts and percentages, and legal witness statements. This matches the definition of an official announcement of shareholder vote results at a general meeting. Therefore, it is a Declaration of Voting Results & Voting Rights Announcement (DVA).
2026-05-22 Chinese
股票交易严重异常波动公告
Regulatory Filings Classification · 85% confidence The document is an official stock exchange announcement (“公告”) by Wuhan Changying Tong Photonics Technology Co., Ltd. disclosing a “serious abnormal fluctuation” in its share price and related risk warnings. It is not a financial report (no full financial statements), nor an earnings release, annual or interim report, or proxy/materials for a meeting. It is a mandatory regulatory disclosure of abnormal trading activity under exchange rules. It therefore falls under Regulatory Filings (RNS).
2026-05-20 Chinese
关于股票交易风险提示公告
Regulatory Filings Classification · 87% confidence The document is a Chinese-listed company’s official risk warning announcement (“关于股票交易风险提示公告”) regarding abnormal stock price fluctuations and valuation risks. It is a routine regulatory compliance disclosure (with a bulletin number, stock code, etc.) rather than a financial report, earnings release, or other specific category. It does not simply announce publication of a report, nor does it contain full financial statements. Therefore it falls under the general regulatory announcement category.
2026-05-18 Chinese
关于参加十五五·未来产业——科创企业产业迭代与创新赋能之2025年度航空航天行业集体业绩说明会暨2026年第一季度业绩说明会的公告
Regulatory Filings Classification · 75% confidence The document is a regulatory announcement by Wuhan ChangyingTong Photonics Technology Co., Ltd. regarding the timing, format, and participation details of an upcoming web‐based interactive performance briefing for its 2025 annual results and 2026 Q1 results. It does not contain financial statements or the actual presentation content, nor is it a transcript. It is essentially an event notice/investor meeting announcement and does not fit the specific financial report or presentation categories. Therefore, it falls into the fallback “Regulatory Filings” category.
2026-05-13 Chinese
2025年年度股东会会议资料
AGM Information Classification · 92% confidence The document is the complete set of 2025 Annual Shareholders’ Meeting materials for Wuhan Changying Photonics Technology Co., Ltd., including meeting instructions, agenda and detailed proposals for shareholder votes. This clearly corresponds to materials prepared and presented at the AGM rather than a report publication announcement or other filing. Therefore, it should be classified as AGM Information (AGM-R).
2026-05-13 Chinese

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