铂科电子：股东客户贡献过半收入，研发投入不足削弱长期竞争力

Core Viewpoint - Hangzhou Boke Electronics Co., Ltd. has submitted its listing application to the Hong Kong Stock Exchange, showcasing rapid financial growth, but the details regarding customer structure in the prospectus indicate a transition from single reliance to multi-faceted pressure explanations [1] Financial Performance - From 2023 to the first three quarters of 2025, the company's revenue surged from 261.89 million to 751.398 million RMB, while net profit increased from 4.24 million to 76.105 million RMB [2][3] - The company holds a market share of 18.9% in the domestic market and 8.9% globally for high-performance computing server power supplies as of 2024 [2] Customer Concentration - In 2023, revenue from Bit Micro accounted for 89.9% of total revenue, highlighting a significant reliance on a single customer [4] - By 2024, Bit Micro's contribution decreased to 51.1%, with the top five customers collectively contributing 91.6% of revenue [6] - In the first three quarters of 2025, the top five customers contributed 88.6%, with Bit Micro dropping to 23.5% and no longer being the largest customer [6][7] Revenue Sources - The revenue from dedicated computing server power supplies dominated, accounting for 65.8% in the first three quarters of 2025 [5] - The company's ESS (Energy Storage System) business saw a significant increase, with revenue rising to 33.8% in the first three quarters of 2025, up from a low level in 2023 [12] Accounts Receivable and Cash Flow - The accounts receivable turnover days increased from 21.9 days in 2023 to 57.6 days in the first three quarters of 2025, indicating growing cash flow pressure [9][10] - The lengthening payment cycles suggest that cash flow is increasingly dictated by downstream order rhythms rather than the company's bargaining power [10] Diversification Efforts - The company is expanding its customer base to include cloud service providers, server manufacturers, and energy storage clients to reduce dependency on Bit Micro [8] - Despite the increase in revenue from new customers, the company must demonstrate that these changes can effectively mitigate previous dependencies [11] Research and Development - R&D expenses as a percentage of revenue decreased from 16.2% in 2023 to 8.1% in the first three quarters of 2025, raising concerns about the company's long-term technological competitiveness [14] Overall Implications - The company's growth is heavily reliant on specific capital expenditures from downstream customers, and any fluctuations in these expenditures could impact all aspects of the business [11] - The prospectus presents a complex narrative where each development must align with historical data and customer structures, making it essential for the company to maintain consistency in its explanations [15]