Group 1 - The core viewpoint of the article is that Sihui Fushi (300852.SZ) is progressing well with its technology at the Thailand factory, which is currently in the preparation stage for mass production [1] - The company emphasizes its commitment to ensuring the successful mass production of the Thailand factory to better serve global customers [1] - The company's optical module PCB is primarily produced domestically, indicating a focus on local production capabilities [1]

Core Viewpoint - The company, Yidun Electronics (603328.SH), emphasizes its high-precision, high-density, and high-reliability printed circuit boards (PCBs) that are widely used across various sectors including automotive electronics, computing and communication, industrial control and medical, new energy and power, as well as multimedia and display applications [1] Group 1 - The company's PCBs are noted for their characteristics of high precision, high density, and high reliability [1] - The applications of the company's products include automotive electronics, computing and communication, industrial control and medical, new energy and power, and multimedia and display [1] - A small portion of the products is related to industrial robotics, but the company has not yet ventured into computing servers or humanoid robot projects [1] Group 2 - The company plans to continue focusing on the development and application of cutting-edge PCB technologies [1] - The company aims to align its research and development efforts with market demands and its own business advantages [1] - The company is committed to actively pursuing the research and application of new technologies and products [1]

Group 1: Financial Performance - In the first half of 2025, the company achieved revenue of 3.533 billion yuan, a year-on-year increase of 20.73% [2] - The net profit attributable to shareholders in the first half of 2025 was 222 million yuan, a year-on-year decrease of 6.19% [2] - The gross profit margin for the first half of 2025 was 21.51%, down 3.57 percentage points from the same period last year [2][3] Group 2: Cost Management and Pricing Strategy - The increase in raw material prices, particularly gold and copper, has significantly impacted costs, with gold salt prices rising by 36.57% year-on-year in the first half of 2025 [3] - The company is implementing a series of measures to improve gross profit margins, including optimizing sales structure and managing loss-making orders [4] - Cost management initiatives include enhancing unit cost monitoring, improving material utilization, and implementing price adjustments based on market conditions [8] Group 3: Capacity Expansion and Production Efficiency - The current capacity utilization rate is approximately 85% [9] - The company is accelerating capacity expansion in its Zhuhai plants and establishing a new HDI factory to meet growing market demand [10] - Plans are in place to enhance production efficiency through technological upgrades and automation [15] Group 4: Market Diversification and Sales Strategy - Sales in the U.S. market account for about 10% of total revenue [13] - The company is diversifying its market strategy to reduce reliance on the U.S. market, with domestic sales exceeding 50% of total revenue [15] - Strategies to mitigate the impact of U.S. tariffs include optimizing customer cooperation and enhancing overseas production capabilities [15] Group 5: Subsidiary Performance - The subsidiary San De Guan continues to face challenges in the flexible printed circuit board (FPC) sector, with a projected 3.6% growth in the FPC market for 2025 [10][11] - The subsidiary Puno Wei has successfully launched its mSAP production line, focusing on high-end applications and showing signs of improving profitability [12]

Group 1 - The core viewpoint of the news is the performance and shareholder structure of Si Hui Fu Shi Electronic Technology Co., Ltd, which has seen a decline in stock price and trading volume [1] - As of the report, Si Hui Fu Shi's stock price dropped by 5% to 36.08 CNY per share, with a trading volume of 143 million CNY and a turnover rate of 2.83%, resulting in a total market capitalization of 5.097 billion CNY [1] - The company's main business involves the research, production, and sales of printed circuit boards, with revenue composition being 93.96% from printed circuit boards and 6.04% from other supplementary sources [1] Group 2 - From the perspective of major shareholders, Ping An Fund's advanced manufacturing theme stock fund has increased its holdings in Si Hui Fu Shi by 188,700 shares, bringing its total to 1.579 million shares, which accounts for 1.15% of the circulating shares [2] - The fund has reported a year-to-date return of 78.89% and a one-year return of 150.17%, ranking 50 out of 4222 and 12 out of 3789 respectively in its category [2] - The fund manager, Zhang Yinxian, has been in position for 1 year and 317 days, with the fund's total asset size at 1.425 billion CNY and a best return of 89.18% during his tenure [3] Group 3 - Si Hui Fu Shi is the seventh largest holding in Ping An Fund's advanced manufacturing theme stock fund, representing 3.59% of the fund's net value [4] - The fund has incurred an estimated floating loss of approximately 3 million CNY due to the recent decline in Si Hui Fu Shi's stock price [4]

9月4日，景旺电子跌5.01%，截至发稿，报52.34元/股，成交12.07亿元，换手率2.36%，总市值493.45亿 元。 南方数字经济混合A（019410）成立日期2023年11月14日，最新规模3093.33万。今年以来收益36.9%， 同类排名1420/8180；近一年收益66.69%，同类排名1303/7978；成立以来收益54.92%。 南方数字经济混合A（019410）基金经理为王博。 截至发稿，王博累计任职时间5年300天，现任基金资产总规模47.63亿元，任职期间最佳基金回报 82.48%， 任职期间最差基金回报-43.42%。 南方中证500ETF（510500）基金经理为罗文杰。 截至发稿，罗文杰累计任职时间12年139天，现任基金资产总规模1389.99亿元，任职期间最佳基金回报 141.73%， 任职期间最差基金回报-47.6%。 从基金十大重仓股角度 数据显示，南方基金旗下1只基金重仓景旺电子。南方数字经济混合A（019410）二季度减持6300股， 持有股数4.34万股，占基金净值比例为4.41%，位居第八大重仓股。根据测算，今日浮亏损失约11.98万 元。 资料显示，深圳市景 ...

浙商汇金量化臻选股票A（011824）成立日期2021年7月1日，最新规模6380.8万。今年以来收益 23.52%，同类排名1698/4222；近一年收益58.88%，同类排名1287/3789；成立以来收益13.6%。 9月4日，奥士康跌5.02%，截至发稿，报37.50元/股，成交1.41亿元，换手率1.20%，总市值119.01亿 元。 浙商汇金量化臻选股票A（011824）基金经理为陈顾君。 资料显示，奥士康科技股份有限公司位于广东省深圳市南山区深圳湾创新科技中心2栋A座32楼，成立 日期2008年5月21日，上市日期2017年12月1日，公司主营业务涉及从事高密度印制电路板的研发、生产 和销售。主营业务收入构成为：四层板及以上板75.36%，单/双面板16.24%，其他(补充)8.40%。 截至发稿，陈顾君累计任职时间5年229天，现任基金资产总规模2.04亿元，任职期间最佳基金回报 33.77%， 任职期间最差基金回报-7.57%。 从基金十大重仓股角度 数据显示，浙商证券资管旗下1只基金重仓奥士康。浙商汇金量化臻选股票A（011824）二季度持有股 数3.2万股，占基金净值比例为0.74%，位 ...

Group 1 - The core point of the news is that Aoshikan's stock price dropped by 5.02% to 37.50 CNY per share, with a trading volume of 141 million CNY and a turnover rate of 1.20%, resulting in a total market capitalization of 11.901 billion CNY [1] - Aoshikan Technology Co., Ltd. is located in Shenzhen, Guangdong Province, and was established on May 21, 2008, with its listing date on December 1, 2017. The company specializes in the research, production, and sales of high-density printed circuit boards [1] - The main business revenue composition of Aoshikan includes: 75.36% from four-layer and above boards, 16.24% from single/double-sided boards, and 8.40% from other supplementary products [1] Group 2 - From the perspective of major holdings in funds, one fund under China Europe Fund has a significant position in Aoshikan. The China Europe Small Cap Growth Mixed A Fund (015880) held 99,600 shares in the second quarter, accounting for 0.57% of the fund's net value, making it the fifth-largest holding [2] - The China Europe Small Cap Growth Mixed A Fund (015880) was established on June 28, 2022, with a latest scale of 199 million CNY. Year-to-date returns are 45.85%, ranking 837 out of 8180 in its category; the one-year return is 98%, ranking 360 out of 7978; and since inception, the return is 50.42% [2] - The fund managers of the China Europe Small Cap Growth Mixed A Fund are Qian Yating and Tang Minwei, with Qian Yating having a tenure of 3 years and 307 days and a total fund asset size of 2.377 billion CNY, achieving a best return of 54.89% during her tenure [2]

Group 1 - The core viewpoint of the news is that Pengding Holdings has experienced a significant decline in stock price, dropping 5.25% on September 4, with a cumulative drop of 11.05% over three consecutive days [1] - As of the report, the stock price of Pengding Holdings is 50.40 yuan per share, with a trading volume of 970 million yuan and a turnover rate of 0.80%, resulting in a total market capitalization of 116.83 billion yuan [1] - The company, established on April 29, 1999, primarily engages in the design, research and development, manufacturing, and sales of various printed circuit boards, with revenue composition being 62.70% from communication boards, 31.60% from consumer electronics and computer boards, 4.92% from automotive/server boards, and 0.78% from other sources [1] Group 2 - Among the top ten circulating shareholders of Pengding Holdings, Huatai-PB Fund's Huatai-PB CSI 300 ETF (510300) increased its holdings by 993,500 shares in the second quarter, holding a total of 12.43 million shares, which accounts for 0.54% of the circulating shares [2] - The estimated floating loss for Huatai-PB CSI 300 ETF today is approximately 34.67 million yuan, with a total floating loss of 82.15 million yuan during the three-day decline [2] - The Huatai-PB CSI 300 ETF, established on May 4, 2012, has a latest scale of 374.70 billion yuan, with a year-to-date return of 15.74% and a one-year return of 39.33% [2]

Group 1 - The company has focused on the research, production, and sales of high-precision and high-density double-sided and multi-layer printed circuit boards (PCBs) since its establishment [2] - The company has the production capability for through-hole boards with 20 layers and above, with specific product layers depending on customer order requirements [2]

Group 1 - The core viewpoint of the news is that ShenNan Circuit experienced a significant stock price increase of 5.36%, reaching 189.54 CNY per share, with a trading volume of 1.055 billion CNY and a turnover rate of 0.86%, resulting in a total market capitalization of 126.374 billion CNY [1] - ShenNan Circuit Co., Ltd. is located in Longgang District, Shenzhen, Guangdong Province, and was established on July 3, 1984. The company was listed on December 13, 2017, and its main business involves the research, development, production, and sales of printed circuit boards [1] - The revenue composition of ShenNan Circuit includes printed circuit boards (60.01%), packaging substrates (16.64%), electronic assembly (14.14%), other supplementary products (5.80%), and other products (3.40%) [1] Group 2 - From the perspective of fund holdings, data shows that one fund under Bosera Fund has a significant position in ShenNan Circuit. The Bosera Strategic New Materials Theme Mixed A Fund (011340) held 37,600 shares in the second quarter, accounting for 2.74% of the fund's net value, making it the eighth largest holding [2] - The Bosera Strategic New Materials Theme Mixed A Fund (011340) was established on February 2, 2021, with a latest scale of 95.5929 million CNY. Year-to-date returns are 32.74%, ranking 1869 out of 8180 in its category; the one-year return is 43.13%, ranking 3192 out of 7967; and since inception, the return is 9.78% [2] - The fund manager of Bosera Strategic New Materials Theme Mixed A Fund is Wang Han, who has been in the position for 2 years and 216 days. The total asset scale of the fund is 839 million CNY, with the best fund return during his tenure being 23.5% and the worst being 14% [3]