Core Viewpoint - The company, JieJie Microelectronics, announced that it does not provide guarantees for entities outside its subsidiaries, does not have overdue guarantees, and has not provided guarantees for its controlling shareholders, actual controllers, or their related parties [2] Summary by Categories - **Company Guarantees** - JieJie Microelectronics confirmed that it does not provide guarantees for any entities outside its subsidiaries [2] - The company stated that there are no overdue guarantees [2] - There are no guarantees provided for the controlling shareholders, actual controllers, or their related parties [2]

Core Viewpoint - The company, JieJie Microelectronics (300623.SZ), announced that several key individuals, including directors and senior management, plan to reduce their shareholdings, totaling up to 5.7323 million shares [1] Group 1 - The announcement involves the company's directors: Mr. Zhang Zulai, Mr. Li Zhonglin, Mr. Yan Chengxiang, and supervisor Mr. Shen Zhipeng, along with senior management personnel Mr. Xu Yang [1]

Core Viewpoint - The company, JieJie Microelectronics (300623.SZ), announced share reduction plans by several board members and senior management, which may impact the stock's market performance in the upcoming months [1][2]. Summary by Relevant Sections Shareholders' Reduction Plans - Zhang Zulei plans to reduce his holdings by up to 5,293,224 shares, representing 0.6361% of the total share capital, between October 10, 2025, and January 9, 2026 [1]. - Li Zhonglin intends to sell up to 205,875 shares, accounting for 0.0247% of the total share capital, during the same period [1]. - Yan Chengxiang also plans to reduce his stake by up to 205,875 shares, which is 0.0247% of the total share capital, within the specified timeframe [1]. Additional Shareholders' Plans - Shen Zhipeng will reduce his holdings by up to 5,925 shares, which is 0.0007% of the total share capital, from October 10, 2025, to January 9, 2026 [2]. - Xu Yang plans to sell up to 21,400 shares, representing 0.0026% of the total share capital, during the same period [2].

Summary of Key Points Core Viewpoint - On September 3, 2023, Galaxy Microelectronics experienced two block trades totaling 347,900 shares, with a transaction value of 8.4483 million yuan, reflecting a discount of 7.89% compared to the closing price of the day [2]. Trading Activity - The total transaction volume for the two block trades was 347,900 shares, with a total transaction amount of 8.4483 million yuan, and the transaction price was 24.28 yuan per share [2]. - Over the past three months, Galaxy Microelectronics has recorded four block trades, with a cumulative transaction value of 14.5715 million yuan [2]. Stock Performance - The closing price of Galaxy Microelectronics on the day of the block trades was 26.36 yuan, showing a slight decline of 0.11% [2]. - The stock had a turnover rate of 2.04%, with a total trading volume of 69.6227 million yuan for the day, and a net outflow of main funds amounting to 5.2234 million yuan [2]. - Over the past five days, the stock has decreased by 1.27%, with a total net outflow of funds amounting to 5.0960 million yuan [2]. Margin Financing - The latest margin financing balance for Galaxy Microelectronics is 91.2528 million yuan, which has increased by 9.1212 million yuan over the past five days, representing an increase of 11.11% [2].

Core Insights - The report by Zhiyan Consulting highlights the growth in China's diode and similar semiconductor device imports and exports in June 2025, indicating a dynamic market environment [1] Import Data - In June 2025, China imported 44.1 billion units of diodes and similar semiconductor devices, marking a year-on-year increase of 4.4% [1] - The import value reached $2.125 billion, reflecting a year-on-year growth of 12.7% [1] Export Data - In June 2025, China exported 64.7 billion units of diodes and similar semiconductor devices, showing a year-on-year increase of 12.8% [1] - The export value was $3.801 billion, which represents a year-on-year decline of 11.8% [1] Industry Context - Zhiyan Consulting is recognized as a leading industry consulting firm in China, specializing in in-depth industry research and providing comprehensive consulting services for investment decisions [1]

Financial Performance - The company reported a total revenue of 1.6 billion yuan for the first half of 2025, representing a year-on-year increase of 26.77% [1] - The net profit attributable to shareholders reached 247 million yuan, up 15.35% year-on-year [1] - In Q2 2025, the total revenue was 901 million yuan, with a year-on-year growth of 21.21%, and the net profit was 135 million yuan, increasing by 10.69% year-on-year [1] - The gross margin was 35.39%, down 4.56% year-on-year, while the net margin was 15.43%, a decrease of 14.41% year-on-year [1] Cash Flow and Receivables - The company's accounts receivable increased significantly, with a year-on-year growth of 40.46%, reaching 722 million yuan [1][3] - The net cash flow from operating activities saw a substantial increase of 55.03%, attributed to higher sales collections [3] - The cash and cash equivalents net increase was down by 526.20%, due to reduced cash inflow from maturing structured deposits [3] Cost and Expenses - Total sales, management, and financial expenses amounted to 151 million yuan, accounting for 9.46% of revenue, a decrease of 7.93% year-on-year [1] - The operating cost increased by 30.17%, in line with the growth in sales [3] Investment and Financing - The company’s interest-bearing debt decreased by 43.75% to 1.148 billion yuan [1] - The net cash flow from financing activities increased by 196.52%, primarily due to an increase in short-term borrowings [3] Shareholder Metrics - The earnings per share (EPS) was 0.30 yuan, reflecting a year-on-year increase of 3.45% [1] - The net asset value per share rose to 6.97 yuan, up 41.31% year-on-year [1] - The company’s return on invested capital (ROIC) was 7.35%, indicating average capital returns [4] Fund Holdings - The largest fund holding in the company is the Zhongjia Kofeng Value Selection Mixed Fund, which holds 0.05 million shares and has recently entered the top ten holdings [5]

Core Insights - The company reported a revenue of 3.455 billion yuan for the first half of 2025, representing a year-on-year growth of 20.58% [1] - The net profit attributable to shareholders reached 601 million yuan, showing a year-on-year increase of 41.55% [1] - The net profit attributable to shareholders after deducting non-recurring gains and losses was 559 million yuan, reflecting a year-on-year growth of 32.33% [1] - The basic earnings per share were 1.12 yuan, and the company proposed a cash dividend of 4.2 yuan (including tax) for every 10 shares to all shareholders [1]

Core Insights - The company reported a revenue of 1.6 billion yuan for the first half of 2025, representing a year-on-year growth of 26.77% [1] - The net profit attributable to shareholders reached 247 million yuan, showing a year-on-year increase of 15.35% [1] - The basic earnings per share (EPS) stood at 0.3 yuan [1]

Group 1 - The company, JieJie Microelectronics (300623), reported that as of August 8, 2025, the total number of shareholders is 98,496 (excluding margin accounts) [1]

Core Viewpoint - The CMOS digital isolator industry is experiencing rapid growth and technological innovation, driven by the increasing demand for signal isolation and system protection in various applications such as industrial automation, medical devices, and automotive electronics [2][4]. Industry Overview - The CMOS digital isolator market is projected to grow from $579 million in 2024 to $1.228 billion by 2031, with a compound annual growth rate (CAGR) of 10.85% from 2025 to 2031 [4]. - The Chinese market is expected to grow from $201 million in 2024, accounting for approximately 34.66% of the global market, to $532 million by 2031, increasing its share to 43.34% [4]. - China and Taiwan are significant production regions, with market shares of 45.14% and 32.74% respectively in 2024, and China's share is expected to reach 55.35% by 2031 [4]. Technological Development - Capacitive coupling isolation architecture based on CMOS technology has become mainstream, with continuous improvements in common-mode transient immunity (CMTI), transmission consistency, and temperature characteristics [5]. - Multi-channel digital isolators are gaining importance, projected to account for 94.55% of the market share by 2031 [5]. - The industrial automation sector is expected to hold approximately 31.16% of the market share in 2024, with a CAGR of about 11.39% in the coming years [5]. Market Dynamics - Major players in the international market include companies like SiTime, Broadcom, Texas Instruments, Analog Devices, and Infineon, which collectively hold about 57.52% of the market share in 2024 [5]. - In the domestic market, leading companies such as Naxin Microelectronics, Shanghai Chuantu Microelectronics, and Analog Devices account for approximately 66.46% of the market share in 2024 [5]. Future Directions - Companies are focusing on differentiated competition and ecosystem layout, with leading firms enhancing certification systems and key application scenarios, while smaller firms target niche markets with customized solutions [6]. - The evolution of the global supply chain and the emphasis on localized production and supply chain security are becoming critical focal points in the digital isolation sector [6]. Industry Characteristics - CMOS digital isolators are gradually replacing traditional optocouplers due to their superior performance in speed, lifespan, and anti-interference capabilities [8]. - The trend towards miniaturization and high integration is evident, with CMOS digital isolators requiring less board space and allowing for multiple signal channels [9]. - High reliability and longevity are key advantages of CMOS technology, making these isolators suitable for demanding environments [10]. Market Acceptance and Cost Trends - The cost of digital isolators is decreasing due to mature manufacturing processes, making them competitive with high-performance optocouplers [11]. - The growing acceptance of digital isolation solutions in various markets, including industrial control and medical devices, is driving widespread adoption [11]. Influencing Factors - The continuous maturation of CMOS technology is enhancing the performance and yield of digital isolators, supporting their development [12]. - The increasing demand for high-end applications in electric vehicles, industrial automation, and medical electronics is expanding the market space for CMOS digital isolators [13]. - The limitations of traditional optocouplers, such as temperature drift and slow transmission speeds, are accelerating the shift towards digital isolation technologies [14]. Challenges - Market awareness of digital isolators is still developing, with some customers remaining loyal to optocouplers, which may slow the adoption rate [16]. - The high technical barriers and long R&D cycles associated with digital isolation technology pose challenges for new entrants [17]. - Price competition remains a concern, particularly in low-end markets where digital isolators may still be perceived as more expensive than optocouplers [18]. - Domestic manufacturers face challenges in technology accumulation and certification compared to established international players [19].