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UNION SEMICONDUCTOR (HEFEI) CO., LTD. — Investor Relations & Filings

Ticker · 688403 ISIN · CNE100005PP0 Shanghai Stock Exchange Manufacturing
Open in API
Filings indexed 603 across all filing types
Latest filing 2025-03-27 Board/Management Inform…
Country CN China
Listing Shanghai Stock Exchange 688403

About UNION SEMICONDUCTOR (HEFEI) CO., LTD.

http://www.unionsemicon.com.cn/

Union Semiconductor (Hefei) Co., Ltd. is an integrated circuit design enterprise specializing in high-performance analog and mixed-signal solutions. The company focuses on the research, development, and distribution of power management integrated circuits (PMICs), including DC-DC converters, linear regulators (LDOs), and battery management systems. Its product portfolio also encompasses signal chain components, interface ICs, and specialized drivers. These products are engineered for applications across consumer electronics, industrial automation, telecommunications, and automotive electronics. By prioritizing technical innovation and high-efficiency design, the company provides reliable semiconductor components characterized by low power consumption and compact form factors, supporting the requirements of advanced electronic systems and power-sensitive applications.

Recent filings

Filing Released Lang Actions
2024年度独立董事述职报告（蔺智挺）
Board/Management Information Classification · 95% confidence The document is titled as an "Independent Director's Work Report for 2024" from Hefei Xinhui Cheng Microelectronics Co., Ltd. It details the independent director's activities, attendance at board and committee meetings, communication with auditors, evaluation of governance and internal controls, and overall assessment of the company's governance and management during the year 2024. The content focuses on the independent director's duties, governance oversight, and compliance with relevant laws and regulations. It does not contain financial statements or detailed financial performance data, nor is it an announcement or invitation for a meeting. It is a governance-related report specifically from an independent director about their role and observations. This fits best under the category of Board/Management Information (MANG), which includes announcements or reports related to board members and senior management activities and governance roles. The document is substantive and not a mere announcement or certification, so it is not Regulatory Filings (RNS) or Report Publication Announcement (RPA). Therefore, the classification is MANG with high confidence.
2025-03-27 Chinese
2024年度会计师事务所履职情况评估报告
Audit Report / Information Classification · 95% confidence The document is titled as an evaluation report on the performance of the accounting firm Tianjian for the 2024 fiscal year audit services provided to Hefei Xinhui Microelectronics Co., Ltd. It details the auditor's qualifications, independence, audit procedures, fees, quality management, and risk management related to the 2024 audit engagement. The document does not contain actual financial statements or substantive financial data but rather assesses the auditor's performance and compliance with regulatory requirements. It is a standalone audit-related report focusing on the auditor's role and evaluation, which fits the definition of an Audit Report / Information (AR). The document length is under 5,000 characters but contains detailed evaluation content, not merely an announcement or certification, so it is not a Report Publication Announcement (RPA) or Regulatory Filing (RNS). Therefore, the appropriate classification is AR with high confidence.
2025-03-27 Chinese
2024年度独立董事述职报告（杨辉）
Board/Management Information Classification · 95% confidence The document is titled as an "Independent Director's Work Report for 2024" from Hefei Xinhui Microelectronics Co., Ltd. It details the independent director's activities, attendance at board and committee meetings, communication with shareholders, oversight of internal audits, and evaluation of company governance and compliance during the year 2024. It includes no financial statements or detailed financial data but focuses on governance, director duties, and compliance with laws and regulations. This type of document is a report on board/management activities and director duties rather than a financial report or announcement. Therefore, it fits best under the category of Board/Management Information (MANG). The document length (5055 characters) and content confirm it is a substantive report, not a brief announcement or certification. Hence, the classification is MANG with high confidence.
2025-03-27 Chinese
2024年度独立董事述职报告（罗昆）
Board/Management Information Classification · 95% confidence The document is titled as an "Independent Director's Work Report for 2024" from Hefei Xinhui Microelectronics Co., Ltd. It details the independent director's duties, attendance at meetings, communication with internal audit and shareholders, and oversight activities during the year 2024. The content focuses on governance, compliance with laws and regulations, internal control, and board activities rather than financial results or audit opinions. It is a detailed report on board/management information, specifically the independent director's annual work report, which fits best under the category of Board/Management Information (MANG). The document length is 4422 characters, which is sufficient for a substantive report rather than a brief announcement. There is no indication that this is an annual report, audit report, or other financial filing. Therefore, the classification is MANG with high confidence.
2025-03-27 Chinese
关于更换持续督导保荐代表人的公告
Board/Management Information Classification · 95% confidence The document is an announcement regarding the change of continuous supervision sponsor representatives for a company listed on the STAR Market (科创板). It details the replacement of specific individuals responsible for sponsorship and supervision duties related to the company's IPO and convertible bond issuance. The document is short (1024 characters) and focuses on management and board-related changes concerning sponsor representatives, not financial results or reports. It does not contain financial statements or detailed financial data. Therefore, it fits best under Board/Management Information (MANG), as it announces changes in key company representatives related to regulatory sponsorship and supervision roles.
2025-03-11 Chinese
2024年度业绩快报公告
Earnings Release Classification · 95% confidence The document is titled '2024 年度业绩快报公告' which translates to '2024 Annual Performance Express Report Announcement'. It contains preliminary financial data for the year 2024, including revenue, profit, assets, and equity figures. The data is explicitly stated as preliminary and unaudited, with a note that the final audited data will be in the 2024 Annual Report. The document is relatively short (1917 characters) and serves as a quick earnings update rather than a full comprehensive report. This matches the characteristics of an Earnings Release (ER), which provides initial key financial highlights for a fiscal period. It is not a full Annual Report (10-K) or Interim Report (IR) because it lacks detailed financial statements and comprehensive analysis. It is also not a Report Publication Announcement (RPA) because it contains substantive financial data, not just a notice of report availability.
2025-02-27 Chinese

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