Summary of Key Points Core Viewpoint - WI Harper Fund VII Hong Kong Limited has completed its share reduction plan, selling a total of 2,230,700 shares of Meixin Sheng Technology (Beijing) Co., Ltd., which represents approximately 1.99997% of the company's total share capital [1][2]. Group 1: Shareholder Information - Before the reduction plan, WI Harper Fund VII held 8,470,729 shares, accounting for 7.59% of the total share capital of the company [1][2]. - The shares held by WI Harper Fund VII were acquired through capital reserve conversion before and after the company's initial public offering [1]. Group 2: Reduction Plan Implementation - The reduction plan was disclosed on February 20, 2025, and the reduction period lasted from March 13, 2025, to June 9, 2025 [2]. - The shares were sold through block trading at prices ranging from 30.26 to 37.54 yuan per share, resulting in a total reduction amount of 76,172,878 yuan [2]. - After the reduction, WI Harper Fund VII holds 6,240,029 shares, which is 5.59% of the total share capital [2].

近日，公司收到 WI Harper Fund VII 出具的《关于减持股份结果的告知函》， WI Harper Fund VII 本次减持计划时间届满，本次减持计划实施完毕。在减持 股份计划实施期间，WI Harper Fund VII 通过大宗交易方式累计减持公司股份 2,230,700 股，减持股份数量占公司总股本的 1.99997%。 | 股东名称 | WI | HARPER | FUND | VII | HONG | KONG | LIMITED | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 股东身份 | 控股股东、实控人及一致行动人 | | | | | | □是 | √否 | 证券代码：688458 证券简称：美芯晟 公告编号：2025-035 美芯晟科技（北京）股份有限公司 股东减持股份结果公告 本公司董事会、全体董事及相关股东保证本公告内容不存在任何虚假记载、 误导性陈述或者重大遗漏，并对其内容的真实性、准确性和完整性依法承担法律 责任。 重要内容提示： 大股东持有的基本情况 本次减持计划实施前,美芯晟科技（北京）股份 ...

Core Viewpoint - Meixinsheng (688458) has experienced a stock price increase of 4.8% this week, closing at 41.68 yuan, with a total market capitalization of 4.649 billion yuan, ranking 134th in the semiconductor sector [1][2] Company Announcements - The company will hold its 2024 annual general meeting on June 25, 2025, to review several proposals [1][3] - Meixinsheng has approved changes to its registered address, the cancellation of the supervisory board, and amendments to its articles of association, which will be submitted for shareholder approval [1][3] - The company plans to use its own funds, foreign exchange, and bank acceptance bills to pay for part of the fundraising project and to replace it with an equivalent amount of raised funds [1][3] - The company has repurchased a total of 1,217,636 shares, accounting for 1.0917% of the total share capital, with a total repurchase amount of 42.6899 million yuan [1][3] Performance Disclosure Highlights - In 2024, Meixinsheng reported operating revenue of 404 million yuan, a year-on-year decrease of 14.43%, and a net profit attributable to shareholders of -66.57 million yuan, marking a shift from profit to loss [2][3] - Revenue from analog power chips was 189 million yuan, down 27.45%, with a gross margin of 12.72%; revenue from wireless charging chips was 146 million yuan, down 27.27%, with a gross margin of 30.87%; and revenue from signal chain chips was 69.14 million yuan, up 528%, with a gross margin of 37.44% [2] - Domestic business revenue was 330 million yuan, down 21.10%, with a gross margin of 25.65%; overseas business revenue was 73.75 million yuan, up 37.84%, with a gross margin of 13.88% [2] - The company attributed the decline in performance to weak terminal market demand, slow supply chain integration, and low product prices [2]

Core Viewpoint - The company, Meixinsheng Technology, is experiencing significant growth in its optical sensing technology, with a projected revenue increase of 527.78% in 2024, reaching 69.1389 million yuan, which will account for over 17% of total revenue [1] Group 1: Revenue Growth and Financial Performance - The optical sensing technology business is expected to be the main driver of the company's performance growth in 2024 [1] - In Q1 2025, the company achieved 125 million yuan in revenue, a year-on-year increase of 32.18%, and turned a profit with a gross margin increase of 16 percentage points to 37.6% [1] Group 2: Technological Advancements and Competitive Edge - The company has developed a vertically integrated supply chain from design to manufacturing through proprietary PD/SPAD processes, special coatings, and dedicated packaging technologies [1] - The company has established a strong competitive barrier through differentiated technology routes, with its optical tracking sensors achieving performance benchmarks that meet or exceed international competitors [1][2] Group 3: Market Position and Product Matrix - The company has built a comprehensive product matrix covering three core scenarios: consumer electronics, industrial control, and automotive electronics [2] - The global optical sensor market is projected to grow from $19.52 billion in 2023 to $51.21 billion by 2032, with a CAGR of 11.5% [2] Group 4: Collaborative Innovation and Supply Chain - The company is enhancing its technology ecosystem through collaboration with upstream and downstream partners, accelerating the commercialization of its innovations [3] - The domestic high-end optical sensor chip technology gap is being filled through deep cooperation with industry partners, establishing a localized supply system [3] Group 5: Product Development and Market Expansion - The company has formed a complete layout of optical sensing products, including ambient light/proximity detection, optical tracking sensing, and DToF [4] - The product matrix is expanding into the AIoT ecosystem, maintaining a leading position in consumer electronics while proactively entering emerging markets such as low-altitude economy [4]

Core Insights - Meixinsheng Technology (688458.SH) successfully listed on the Shanghai Stock Exchange's Sci-Tech Innovation Board, contributing to the domestic semiconductor industry [1] - The company has evolved from a single product focus to a diversified ecosystem, significantly enhancing its development quality and product matrix [1] - Meixinsheng's signal chain product series, particularly optical sensors, has seen a substantial revenue increase of 527.78% year-on-year, now accounting for 17.11% of total revenue [1] Group 1: Product Development and Strategy - Initially, Meixinsheng established a solid foundation in analog power technology with LED drivers and later expanded into mixed-signal chips, creating a comprehensive high-voltage, high-current power management product system [1][2] - The company has formed a robust strategic partnership with leading industry clients, focusing on customized solutions and joint innovation, enhancing its product integration and innovation [2] - Meixinsheng's dual-driven product strategy of "power management + signal chain" aims to provide a wide range of chip products and solutions across various applications, including communication terminals, consumer electronics, automotive electronics, and smart homes [2] Group 2: Technological Advancements - In the signal chain domain, Meixinsheng has developed a comprehensive optical product series, including ambient light and proximity sensors, optical tracking sensors, and laser ranging products, applicable in smartphones, AI, robotics, drones, and automotive electronics [5] - The company has achieved significant breakthroughs in low-noise signal processing and high-precision image processing, with several products outperforming international benchmarks [5] - Meixinsheng has established a complete product line for wireless charging, covering power ranges from small to 100W, and is accelerating the development of high-efficiency wired fast-charging products [5] Group 3: Market Position and Future Outlook - Meixinsheng has successfully entered the automotive-grade chip market, with multiple products certified by AEC-Q100 and ISO26262, marking its position as a supplier in this sector [5] - The company is actively exploring AI intelligent sensing fields, aiming to integrate AI technology into existing and new product lines to enhance user experience and provide high-value solutions for emerging markets [6] - With a strong technical foundation and efficient customer service, Meixinsheng has become a leading player in the domestic analog chip sector, poised to seize new market opportunities driven by the deepening of domestic substitution strategies and technological autonomy [6]

美芯晟科技（北京）股份有限公司 章 程 二〇二五年六月 美芯晟科技（北京）股份有限公司章程 -0- 美芯晟科技（北京）股份有限公司章程 第一章 总则 第一条 为维护美芯晟科技（北京）股份有限公司（以下简称"公司"）、股东、 职工和债权人的合法权益，规范公司的组织和行为，根据《中华人民共和国公司 法》 （以下简称" 《公司法》"）、 《中华人民共和国证券法》 （以下简称" 《证券法》"）、 《上市公司章程指引》、《上海证券交易所科创板上市公司自律监管指引第 1 号——规范运作》、 《上市公司股东会规则》、 《上海证券交易所科创板股票上市规 则》（以下简称"上市规则"）和其他有关规定，制订本章程。 第二条 公司系依照《公司法》和其他有关规定成立的股份有限公司。 公司以美芯晟科技（北京）有限公司整体变更方式设立；在北京市海淀区市 场监督管理局注册登记，取得营业执照，依法从事经营活动。 第三条 公司经中国证券监督管理委员会于 2023 年 3 月 9 日核准注册， 首次向社会公众发行人民币普通股 2,001.00 万股，于 2023 年 5 月 22 日在上 海证券交易所上市。 第四条 公司注册名称： 中文全称：美芯 ...

第一章 总则 第一条 为了促进美芯晟科技（北京）股份有限公司（以下简称"公司"）的 规范运作，维护公司整体利益，保障全体股东特别是中小股东的合法权益不受损 害，根据《公司法》、 美芯晟科技（北京）股份有限公司 独立董事制度 《上市公司独立董事管理办法》、 《上市公司治理准则》等相 关法律、法规和规范性文件以及《上海证券交易所科创板股票上市规则》、 《上海 证券交易所科创板上市公司自律监管指引第 1 号——规范运作》和《美芯晟科技 （北京）股份有限公司章程》 公司审计委员会成员应当为不在上市公司担任高级管理人员的董事，其中独 立董事应当过半数，并由独立董事中会计专业人士担任召集人。 公司提名委员会、薪酬与考核委员会中独立董事应当过半数并担任召集人。 -1- 美芯晟科技（北京）股份有限公司 独立董事制度 第二章 独立董事的任职资格和条件 第五条 独立董事候选人应具备上市公司运作的基本知识，熟悉相关法律、 行政法规、部门规章及其他规范性文件，具有五年以上法律、经济、财务、管理 或者其他履行独立董事职责所必需的工作经验，具有良好的个人品德，不存在重 大失信等不良记录，并已取得独立董事资格证书。 （以下简称"公司章程" ...

General Provisions - The company establishes a management system for the shares held and traded by its directors and senior management to enhance oversight and clarify procedures [1][2] - The shares held by directors and senior management include those registered in their names and those held through others' accounts [2] Information Reporting - The company secretary is responsible for managing the identity and shareholding data of directors and senior management, ensuring quarterly checks on share trading disclosures [4] - Directors and senior management must report their shareholding information within two trading days of any changes [5][6] Trading and Disclosure of Shares - Directors and senior management must notify the board secretary of their trading plans in writing before executing trades, and the board must assess any potential risks [10] - Any changes in shareholding must be reported within two trading days, including details such as pre-trade share quantity and post-trade share quantity [11][12] Share Transfer Restrictions - Directors and senior management are prohibited from transferring shares under specific conditions, such as within one year of the stock's listing or within six months after leaving the company [5][6] - The company may impose longer transfer restrictions or lower transfer ratios through its articles of association [6] Trading Limitations - Directors and senior management are restricted from trading shares during certain periods, including 15 days before annual and semi-annual reports [10][12] - They are also prohibited from engaging in derivative trading based on the company's shares [9][12] Legal Responsibilities and Penalties - Violations of the management system by directors and senior management may result in penalties from regulatory authorities, with financial penalties ranging from 5% to 10% of the involved trading amount [12][13] - The company retains the right to interpret the management system and make amendments as necessary [13]

Core Viewpoint - The document outlines the external guarantee management system of Meixinsheng Technology (Beijing) Co., Ltd., aiming to regulate external guarantee behaviors, control risks, and ensure asset safety in compliance with relevant laws and regulations [1][2]. Group 1: General Principles - The external guarantee refers to the guarantees provided by the company for others, including guarantees for its controlling subsidiaries [1]. - External guarantees must be approved by the company's board of directors or shareholders' meeting [1]. - The system applies to the company and its wholly-owned subsidiaries, with controlling subsidiaries required to notify the company of any guarantees made [1]. Group 2: Approval Authority for External Guarantees - Certain guarantee matters must be approved by the shareholders' meeting after being reviewed by the board, including guarantees exceeding 10% of the latest audited net assets and total guarantees exceeding 50% of the latest audited net assets [2]. - Guarantees for shareholders, actual controllers, and their related parties require abstention from voting by the related shareholders [2]. Group 3: Approval Process for External Guarantees - The finance department is responsible for the external guarantee process, including conducting credit analysis and risk assessment of the guaranteed entities [3][4]. - Guarantees must be submitted to the board for approval after the finance department's written report [4]. - The board must carefully analyze the financial and operational status of the guaranteed party before making a decision [4]. Group 4: Management of Guarantee Contracts - Approved guarantee projects must have written contracts that comply with relevant laws, specifying the scope of debt, guarantee responsibilities, and duration [5]. - The company must continuously monitor the situation of the guaranteed party and report regularly to the board [5][6]. Group 5: Information Disclosure - The company must fulfill its information disclosure obligations regarding external guarantees as per legal and regulatory requirements [6]. - Decisions made by the shareholders' meeting or board regarding external guarantees must be announced promptly [6]. Group 6: Accountability - Directors and senior management who violate the approval procedures for guarantee contracts may be liable for damages and face legal consequences if criminal activities are involved [7].

美芯晟科技（北京）股份有限公司 股东会议事规则 第一章 总则 第一条 为保护美芯晟科技（北京）股份有限公司（以下简称"公司"）股 东的合法权益，明确公司股东会的职责和权限，保证股东会依法行使职权，根据 《公司法》、 《上市公司治理准则》、 《上市公司股东会规则》、 《上海证券交易所科 创板上市公司自律监管指引第 1 号——规范运作》等相关法律、法规和规范性文 件以及《上海证券交易所科创板股票上市规则》、 《美芯晟科技（北京）股份有限 公司章程》（以下简称"《公司章程》"）等的规定，制订本规则。 第二条 公司股东会的召集、提案、通知、召开等事项适用本规则。 第三条 公司应当严格按照相关法律、法规和规范性文件以及《公司章程》 和本规则的相关规定召开股东会，保证股东能够依法行使权利。 公司董事会应当切实履行职责，认真、按时组织股东会。 公司全体董事应当勤勉尽责，确保股东会正常召开和依法行使职权。 第四条 股东会应当在《公司法》等相关法律、法规和规范性文件以及《公 司章程》规定的范围内行使职权。 第五条 股东会分为年度股东会和临时股东会。 年度股东会每年召开一次，应当于上一会计年度结束后的六个月内举行。 有下列情形之 ...