Core Viewpoint - The semiconductor industry is experiencing a surge in "A+H" listings, with companies like Longxin Co., Ltd. and others pursuing dual listings to capitalize on market opportunities and enhance capital resources [2][3]. Company Overview - Longxin Co., Ltd. is a leading domestic high-speed mixed-signal chip designer, focusing on efficient and reliable data transmission for smart terminals and AI applications [4][6]. - The company has established a strong market position, ranking first in China and among the top five globally in the video bridge chip market [6]. Financial Performance - Longxin Co., Ltd. has demonstrated impressive financial metrics, with a gross margin exceeding 53% and a net profit margin around 30%, outperforming peers [7]. - The company reported a revenue of 389 million RMB for the first three quarters of 2025, reflecting a year-on-year growth of 16.67%, and a net profit of 125 million RMB, up 32.47% [6][7]. Revenue Breakdown - The company's revenue is primarily derived from smart visual terminals, which accounted for 79.3% of total revenue in the first three quarters of 2025 [8]. - The smart vehicle segment has shown significant growth but is currently facing challenges, while the AI & HPC segment remains small but is expected to grow due to ongoing investments in high-speed transmission protocols [8]. Market Opportunities - The high-speed mixed-signal chip sector presents substantial growth potential, with a current domestic localization rate below 5%, indicating significant room for domestic manufacturers to capture market share [9]. - The market for smart video and interconnect chips is projected to reach a scale of hundreds of billions by 2024, providing ample opportunities for domestic firms [9]. Industry Dynamics - The semiconductor industry is benefiting from supportive domestic policies and technological advancements, which are accelerating development and creating opportunities for local companies [11]. - Longxin Co., Ltd. faces intense competition in technology, particularly in core areas like vehicle SerDes, where it must invest heavily in R&D to keep pace with international leaders [12].

Core Viewpoint - Longxin Semiconductor, a "little giant" enterprise specializing in high-speed mixed-signal chips, has submitted its prospectus to the Hong Kong Stock Exchange, marking a significant step towards entering the capital market [1]. Group 1: Company Overview - Founded in November 2006, Longxin Semiconductor focuses on high-speed mixed-signal chip design, aiming to create efficient and reliable "data highways" for smart terminals, devices, and AI applications [3]. - As a typical Fabless company, Longxin Semiconductor outsources wafer manufacturing and testing to external suppliers, concentrating resources on core technology research and product design, aligning with current industry trends [3]. Group 2: Market Position and Performance - According to authoritative data from Frost & Sullivan, Longxin Semiconductor ranks first in the domestic video bridge chip market and is among the top five Fabless design companies globally, with a projected revenue of 400 million yuan in 2024 and a market share of 3.7% in the global video bridge chip market [3]. - The company has developed a rich product matrix with 261 chip products as of September 30, 2025, including 151 smart video chips and 110 interconnect chips, widely used in smart visual terminals, automotive applications, AR/VR, and AI & HPC [4]. Group 3: Technology and Competitive Edge - Longxin Semiconductor's proprietary ClearEdge technology platform integrates high-bandwidth SerDes, protocol processing, encryption, and high-definition video processing, supporting single-channel transmission rates of up to 20 Gbps, with related IP achieving 100% mass production [4]. Group 4: Client Base and Market Challenges - The company's clients include well-known enterprises such as Visionox, Thunderbird, and Rokid, and it has established reference design collaborations with Nvidia and Qualcomm, laying a solid foundation for market promotion [7]. - Despite its leading position in the domestic market, Longxin Semiconductor faces significant competition from global giants, with Texas Instruments holding a 36.1% market share and Analog Devices at 21.2%, indicating substantial room for growth for Longxin's 3.7% market share [7]. - The company’s R&D expenditure for 2024 is 99.97 million yuan, significantly lower than the over 1 billion yuan spent by its top five global competitors, highlighting the pressure for technological iteration [7]. - Operational efficiency challenges are evident, with inventory turnover days exceeding the industry average by 80.6% and accounts receivable turnover days surpassing the average by 65.3%, indicating a need for improvement post-capital market entry [7].

Core Viewpoint - Longxin Semiconductor Co., Ltd. has submitted an application for listing on the Hong Kong Stock Exchange, with CITIC Securities as the exclusive sponsor [2]. Group 1: Company Overview - Longxin Semiconductor was established in 2006 and is a leading designer of high-speed mixed-signal chips, focusing on building efficient and reliable "data highways" for smart terminals, devices, and AI applications [3]. - As of December 23, 2023, Longxin Semiconductor's total market capitalization is approximately 9.793 billion RMB [3]. Group 2: Market Position - According to Frost & Sullivan, Longxin Semiconductor ranks first in the mainland China video bridging chip market and is among the top five fabless design companies globally by revenue in 2024 [3]. Group 3: Financial Performance - The company's revenue for the years 2022, 2023, 2024, and the first nine months of 2025 are reported as 240.938 million RMB, 323.147 million RMB, 466.003 million RMB, and 389.203 million RMB respectively [4]. - The corresponding net profits for the same periods are 69.206 million RMB, 102.696 million RMB, 144.412 million RMB, and 124.508 million RMB [4]. Group 4: Dividend Distribution - Longxin Semiconductor has distributed dividends of 29.6 million RMB, 20.8 million RMB, 96.5 million RMB, and 71 million RMB for the years 2022, 2023, 2024, and the first nine months of 2025, totaling 217.9 million RMB [5]. Group 5: Shareholding Structure - Prior to the IPO, Feng Chen directly held 37.53% of the shares and controlled an additional 3.31% through Chip Wealth, along with 3.45% voting rights through an irrevocable proxy from his mother, totaling approximately 44.29% control [7].

Company Overview - Longxin Co., Ltd. has submitted an application for listing on the Hong Kong Stock Exchange, with CITIC Securities International as the sole sponsor [1] - The company specializes in high-speed mixed-signal chip design, focusing on data transmission and processing solutions for smart visual terminals, smart automotive, AR/VR devices, and AI and high-performance computing applications [1] - Longxin ranks first in the video bridging chip market in mainland China and is among the top five fabless design companies globally based on projected revenue for 2024 [1] Core Technologies - The company possesses three core technology pillars: high-bandwidth SerDes technology, high-speed protocol processing/data encryption technology, and high-definition video processing and display driver technology [1] - Longxin has expanded its business into interconnect chip areas such as PCIe/CXL/USB Retimer and Switch, leveraging its advantages in SerDes technology [1] Market Growth Projections - The global smart video chip market is expected to grow at a compound annual growth rate (CAGR) of 7.4%, increasing from 109 billion RMB in 2025 to 145 billion RMB by 2029, driven primarily by upgrades in AR/VR, smart automotive, and smart terminal devices [1] - Within this market, video bridging chips and video processing chips are identified as the fastest-growing segments [1] Interconnect Chip Market - The global interconnect chip market is projected to grow at a CAGR of 20.1%, from 139.5 billion RMB in 2025 to 290.4 billion RMB by 2029, largely due to the increasing demand for data processing and visual display in the AI era [2] - The AI computing chip market is expected to reach 273.9 billion RMB by 2029 [2]

Company Overview - Longxin Semiconductor (Hefei) Co., Ltd. is a leading high-speed mixed-signal chip design company focused on building efficient and reliable "data highways" for smart terminals, devices, and AI applications. Its products enable seamless data transmission and processing, with applications in smart visual terminals, automotive, AR/VR devices, and high-performance computing (HPC) [3] - According to Frost & Sullivan, Longxin ranks first in the domestic video bridging chip market and is among the top five fabless design companies globally based on revenue in 2024 [3] Financial Performance - For the fiscal years 2022, 2023, and 2024, Longxin's revenue was approximately RMB 241 million, RMB 323 million, and RMB 466 million, respectively. For the nine months ending September 30, 2024, and 2025, the revenue was RMB 334 million and RMB 389 million, respectively [5] - The company's profit for the same periods was RMB 69.21 million, RMB 103 million, and RMB 144 million, with profits for the nine months ending September 30, 2024, and 2025 being RMB 93.99 million and RMB 124.51 million, respectively [6] Industry Overview - The global market for smart video chips is projected to recover in 2024, with a compound annual growth rate (CAGR) of 7.4%, growing from RMB 1,090 billion in 2025 to RMB 1,450 billion by 2029. This growth is driven by the recovery of the economy and the upgrading of downstream applications such as AR/VR and smart automotive [8] - Video bridging chips and video processing chips are expected to be the fastest-growing segments, with respective CAGRs of 15.5% and 12.1% from 2025 to 2029, driven by increasing demand for high-speed and stable signal bridging in smart visual terminals and automotive applications [9][10] - The global interconnect chip market is anticipated to grow from RMB 1,395 billion in 2025 to RMB 2,904 billion by 2029, with a CAGR of 20.1%, fueled by the increasing demand for data processing and visual display in the AI era [12]

Company Overview - Longxin Semiconductor (Hefei) Co., Ltd. is a leading high-speed mixed-signal chip design company focused on building efficient and reliable "data highways" for smart terminals, devices, and AI applications [3] - The company's products enable seamless data transmission and processing, facilitating efficient interaction between computing, storage, and display units [3] - Longxin ranks first in the domestic video bridging chip market and is among the top five fabless design companies globally based on revenue in 2024 [3] Financial Performance - For the fiscal years 2022, 2023, and 2024, Longxin's revenues were approximately RMB 241 million, RMB 323 million, and RMB 466 million, respectively [5] - The profit figures for the same years were RMB 69.21 million, RMB 102.70 million, and RMB 144.41 million, respectively [6] - For the nine months ending September 30, 2024, and 2025, the revenues were RMB 334 million and RMB 389 million, while profits were RMB 93.99 million and RMB 124.51 million, respectively [5][6] Industry Overview - The global smart video chip market is projected to recover in 2024, with a compound annual growth rate (CAGR) of 7.4%, growing from RMB 1,090 billion in 2025 to RMB 1,450 billion by 2029 [8] - Video bridging chips and video processing chips are expected to be the fastest-growing segments, with respective CAGRs of 15.5% and 12.1% from 2025 to 2029 [9] - The AR/VR and smart automotive sectors are anticipated to be the fastest-growing applications, with the AR/VR market expected to grow from RMB 27 billion in 2025 to RMB 118 billion by 2029, reflecting a CAGR of 44.8% [10] Technology and Product Development - Longxin has expanded into a broader interconnect chip field, focusing on the development of key interconnect components such as PCIe/CXL/USB Retimer and Switch [4] - The company's solutions address the bottlenecks in multimodal data transmission in complex computing environments, meeting the stringent requirements for ultra-low latency and high bandwidth in next-generation AI infrastructure and HPC systems [4] Market Trends - The global interconnect chip market is expected to grow from RMB 1,395 billion in 2025 to RMB 2,904 billion by 2029, with a CAGR of 20.1% [12] - AI computing chips are projected to reach RMB 2,739 billion by 2029, driven by the demand for data interconnects in various high-performance computing applications [14]

Group 1 - The core viewpoint of the article is that Lontium Semiconductor Corporation (龙迅半导体) has submitted a listing application to the Hong Kong Stock Exchange, with China Securities International as the sole sponsor [1] - Lontium Semiconductor is a leading designer of high-speed mixed-signal chips, focusing on creating efficient and reliable "data highways" for smart terminals, devices, and AI applications [1] - The company's products enable seamless data transmission and processing, facilitating efficient interaction between computing, storage, and display units [1] Group 2 - The main applications of Lontium's products include smart visual terminals, automotive electronics, AR/VR devices, and high-performance computing (HPC) [1] - According to Frost & Sullivan, Lontium ranks first in the video bridging chip market in mainland China and is among the top five fabless design companies globally based on projected revenue for 2024 [1]

Investment Rating - The investment rating for the company is "Buy" (maintained) [1] Core Views - The company reported a steady revenue growth in Q2 2025, with a revenue of 250 million yuan, representing a year-on-year increase of 11.4%. The net profit attributable to the parent company was 70 million yuan, up 15.2% year-on-year, with a gross margin of 54.9%, an increase of 0.2 percentage points [4] - The automotive business is progressing well, with the SerDes chips expected to ramp up production. The company has seen continuous penetration in the smart cockpit sector, with 11 bridge chips certified by AEC-Q100, including 5 that passed Grade 2 certification [4] - The company is accelerating its R&D efforts, with R&D investment reaching 60 million yuan in H1 2025, a year-on-year increase of 22.9%, accounting for 23.1% of revenue. The products are increasingly integrated with AI, and the company has made progress in high-speed transmission protocols [5] Financial Summary - The company expects revenues of 670 million yuan, 960 million yuan, and 1.36 billion yuan for 2025, 2026, and 2027 respectively, with net profits of 200 million yuan, 298 million yuan, and 426 million yuan for the same years. The corresponding EPS is projected to be 1.50 yuan, 2.23 yuan, and 3.20 yuan, with PE ratios of 46.92, 31.46, and 21.98 [6] - Key financial indicators for 2025E include a revenue growth of 43.1%, a net profit growth of 38.3%, and a gross margin of 55.0% [8]