三次闯关终过会！通宝光电 IPO 进入“注册关”，93％营收依赖五菱藏隐忧

Core Viewpoint - Tongbao Optoelectronics Co., Ltd. has successfully passed the IPO review by the Beijing Stock Exchange, marking its third attempt to go public after previous withdrawals in 2017 and 2024 [2] Group 1: Company Background and Development - Tongbao Optoelectronics was established in 1991 and transformed into a limited liability company in 2004, later becoming a joint-stock company in 2015 [3] - The company has been listed on the National Equities Exchange and Quotations (NEEQ) since 2015 and has entered the innovation layer in 2020, indicating a new development stage [3] - As of the reporting period, the company holds 79 patents, including 18 invention patents, and has been recognized as a national "specialized, refined, distinctive, and innovative" small giant enterprise [3] Group 2: Financial Performance - The company's revenue has shown steady growth, increasing from 389.70 million yuan in 2022 to 587.79 million yuan in 2024 [3] - Research and development expenditures have also risen from 13.38 million yuan in 2022 to 23.86 million yuan in 2024, with a partial amount of 12.01 million yuan in the first half of 2025 [3] Group 3: Customer Dependency - The company has a high dependency on major clients, with sales to the top five customers accounting for 94.65%, 98.42%, 96.57%, and 99.11% of total revenue from 2022 to the first half of 2025 [4] - The largest customer, SAIC-GM-Wuling, represented 66.83%, 63.99%, 83.35%, and 93.45% of revenue during the same periods, indicating increasing reliance [4] Group 4: Inventory and Receivables - The company's inventory values at the end of each reporting period were 178.18 million yuan, 146.54 million yuan, 128.35 million yuan, and 115.66 million yuan, representing a significant portion of current assets [5] - Accounts receivable were valued at 113.58 million yuan, 184.34 million yuan, 182.11 million yuan, and 131.43 million yuan, also comprising a large share of current assets, which may affect cash flow and increase bad debt risks [5] Group 5: Ownership Structure and Disclosure Issues - The company has a concentrated ownership structure, with the controlling shareholders holding 78.75% of the shares, which raises concerns about potential improper control [6] - The company faced regulatory scrutiny for inaccurate financial disclosures from 2021 to 2023, resulting in a warning letter from the Jiangsu Securities Regulatory Bureau [8]