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SUNSTONE DEVELOPMENT CO., LTD — Investor Relations & Filings

Ticker · 603612 LEI · 655600VQT5E9S4FK9A09 Shanghai Stock Exchange Manufacturing
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Filings indexed 1,408 across all filing types
Latest filing 2026-04-22 Regulatory Filings
Country CN China
Listing Shanghai Stock Exchange 603612

About SUNSTONE DEVELOPMENT CO., LTD

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第六届董事会第二次会议决议公告
Regulatory Filings Classification · 0% 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 · 1% 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
索通发展股份有限公司2025年度环境、社会及治理（ESG）报告
Environmental & Social Information Classification · 1% confidence The document is titled “2025 环境、社会及治理(ESG)报告” and contains extensive sections on environmental management, social contribution, governance structure, ESG metrics, and stakeholder engagement. It is clearly the full ESG report for the company, not merely an announcement or summary. According to the classification definitions, this corresponds to an Environmental & Social Information report (Code: SR).
2026-04-22 Chinese
索通发展股份有限公司关于佛山市欣源电子股份有限公司业绩承诺期满资产减值测试情况的公告
Regulatory Filings Classification · 0% confidence The document is a formal company announcement (“公告”) disclosing the results of an asset impairment test after the expiration of the performance‐commitment period for an acquisition. It is not an earnings release, management discussion, or a standalone financial report, nor a notice of a forthcoming report – it is the actual regulatory disclosure of impairment test findings. It does not fit any specialized category like M&A activity or financing updates but is a standard regulatory filing – hence it falls into the fallback category “Regulatory Filings (RNS).”
2026-04-22 Chinese
索通发展股份有限公司2025年年度报告摘要
Annual Report Classification · 1% confidence The document is titled '索通发展股份有限公司2025年年度报告摘要' (Sunstone Development Co., Ltd. 2025 Annual Report Summary). It explicitly states in the first section that it is a summary of the full annual report and directs investors to the full report on the SSE website. It contains key financial data, business performance summaries, and shareholder information for the fiscal year 2025. According to the filing definitions, an annual report summary is a component of the 10-K (Annual Report) category, as it provides the core financial and operational highlights of the annual reporting period. FY 2025
2026-04-22 Chinese
索通发展股份有限公司2025年年度股东会会议通知
Proxy Solicitation & Information Statement Classification · 1% confidence The document is a formal notice to shareholders of the upcoming 2025 Annual General Meeting (AGM), outlining meeting date, agenda items, voting procedures, proxy authorization form, and registration details. It is soliciting votes and providing materials for proxy voting rather than presenting the AGM’s results or the actual meeting materials. This matches the definition of Proxy Solicitation & Information Statement (PSI).
2026-04-22 Chinese

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