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SUNSTONE DEVELOPMENT CO., LTD — Investor Relations & Filings

Ticker · 603612 ISIN · CNE100002R73 LEI · 655600VQT5E9S4FK9A09 Shanghai Stock Exchange Manufacturing
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Filings indexed 1,412 across all filing types
Latest filing 2026-05-22 Legal Proceedings Report
Country CN China
Listing Shanghai Stock Exchange 603612

About SUNSTONE DEVELOPMENT CO., LTD

https://www.sun-stone.com/

Sunstone Development Co., Ltd. specializes in the research, development, and manufacturing of carbon materials, primarily serving the global primary aluminum industry. The company is a leading producer of pre-baked carbon anodes, which are essential components in the electrolytic reduction process of aluminum smelting. Its product portfolio includes high-quality pre-baked anodes, cathode blocks, and specialized carbon materials designed to enhance energy efficiency and reduce environmental impact. Sunstone operates large-scale production facilities and emphasizes technological innovation to meet international quality standards. The company provides integrated solutions for aluminum smelters, focusing on optimizing the performance and longevity of carbon products in high-temperature industrial environments.

Recent filings

Filing Released Lang Actions
索通发展股份有限公司关于收到《经营者集中反垄断审查不实施进一步审查决定书》的公告
Legal Proceedings Report Classification · 90% confidence The document is an exchange announcement by a listed company (索通发展) informing investors that it has received a decision from the State Administration for Market Regulation not to conduct further antitrust review of its proposed equity increase transaction. This is a regulatory/legal approval rather than a financial report, shareholder vote, or management change. It aligns with the “Legal Proceedings Report” category, which covers updates on significant regulatory actions or legal matters involving the company.
2026-05-22 Chinese
北京市金杜律师事务所关于索通发展股份有限公司2025年年度股东会之法律意见书
Regulatory Filings Classification · 92% confidence The document is a legal opinion letter (“法律意见书”) issued by an external law firm on the legality of convening and conducting the 2025 annual shareholders’ meeting, covering procedural compliance, attendee qualifications, voting procedures, and results. It does not itself present financial statements, management commentary, or a presentation deck but is instead a formal attestation or certification by counsel. Under the “CERTIFICATION RULE,” such letters of attestation fall under general regulatory filings rather than special categories like AGM presentations or voting result notices. Therefore, this should be classified as a Regulatory Filing (RNS).
2026-05-15 Chinese
索通发展股份有限公司关于参加2026年山东辖区上市公司投资者网上集体接待日活动的公告
Regulatory Filings Classification · 75% confidence The document is a public announcement by the company’s board about its participation in an online investor reception day (date, time, method, participants). It does not contain financial statements, voting results, proxy materials, or the actual content of a presentation. It is an event notice, making it a general regulatory announcement rather than a formal report or investor presentation. Therefore it best fits the fallback category ‘Regulatory Filings’ (RNS).
2026-05-12 Chinese
索通发展股份有限公司2025年年度股东会会议资料
AGM Information Classification · 95% confidence The document is titled as "2025年年度股东会会议资料" which translates to "2025 Annual General Meeting (AGM) Meeting Materials". It contains detailed information about the agenda, voting procedures, and various proposals to be discussed and voted on during the 2025 Annual General Meeting. The content includes summaries of the annual report, board work report, profit distribution plan, director remuneration, financing plans, and other governance matters. It is clearly a set of materials prepared for the AGM to inform shareholders and facilitate the meeting. The document is not the annual report itself, nor is it a voting results announcement or a proxy statement. It is a presentation of materials for the AGM meeting. Therefore, the appropriate classification is AGM Information (AGM-R). The document length is substantial (15,000 characters), and it is not merely an announcement of a report publication or a certification, so it is not RPA or RNS.
2026-05-08 Chinese
索通发展股份有限公司第六届董事会第二次会议决议公告
Regulatory Filings Classification · 40% confidence The document is a formal announcement of the board of directors’ meeting resolutions (董事会会议决议公告) detailing the items approved by the board. It is not a direct report like an annual report, earnings release, or ESG report, nor is it a change-of‐management notice. It does not solicit proxies, nor is it the report itself; it simply discloses board resolutions. This type of miscellaneous regulatory announcement falls into the fallback Regulatory Filings category.
2026-04-22 Chinese
索通发展股份有限公司2025年度环境、社会和治理报告摘要
Environmental & Social Information Classification · 96% confidence The document is titled “2025年度环境、社会和治理报告摘要” and provides detailed Environmental, Social, and Governance (ESG) disclosures, data tables, governance structures, stakeholder communications, and sustainability topics. It clearly aligns with an ESG report rather than a financial earnings release, annual report, or other corporate filing. This matches the Environmental & Social Information category (SR).
2026-04-22 Chinese

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