募集说明书等申请文件更新的提示性公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 广东思泉新材料股份有限公司（以下简称"公司"）于 2025 年 9 月 15 日收 到深圳证券交易所（以下简称"深交所"）出具的《关于广东思泉新材料股份有 限公司申请向特定对象发行股票的审核问询函》（审核函〔2025〕020048 号）。 公司按照问询函的要求，会同相关中介机构对问询函所列问题已经进行了逐项落 实并作出回复，具体内容详见公司于 2025 年 10 月 10 日在巨潮资讯网 （www.cninfo.com.cn）披露的相关公告。 根据深交所的进一步审核意见，公司会同相关中介机构对募集说明书、问询 函回复等申请文件中的部分内容进行了补充与更新，具体内容详见与本公告同日 披露的相关公告。 公司本次向特定对象发行股票的事宜尚需通过深交所审核，并获得中国证券 监督管理委员会（以下简称"中国证监会"）同意注册后方可实施，最终能否通 过深交所审核，并获得中国证监会同意注册的决定及时间尚存在不确定性。公司 将根据该事项进展情况及时履行信息披露义务，敬请广大投资者注意投资风险。 ...

Core Viewpoint - Siquan New Materials experienced a significant decline of 16.98% in its stock price, with a trading volume of 2.985 billion yuan and a turnover rate of 29.19% [2] Trading Activity - The stock's trading data indicates a high volatility with an amplitude of 24.38% [2] - Institutional investors net bought 7.3086 million yuan, while retail trading desks collectively net sold 189 million yuan [2] - The top five trading desks accounted for a total transaction volume of 694 million yuan, with buying amounting to 256 million yuan and selling reaching 438 million yuan, resulting in a net sell of 182 million yuan [2] Institutional Participation - Among the trading desks, five institutional specialized seats were involved, with total buying amounting to 192 million yuan and selling amounting to 185 million yuan, leading to a net buy of 7.3086 million yuan [2] - The main capital flow showed a net outflow of 454 million yuan, with large orders contributing to a net outflow of 467 million yuan, while smaller orders saw a net inflow of 12.5037 million yuan [2] - Over the past five days, the main capital has seen a net outflow of 151 million yuan [2] Detailed Trading Information - The top buying and selling activities included significant transactions from institutional specialized seats, with the largest buy being 100.1273 million yuan and the largest sell being 977.694 million yuan [2]

Market Overview - The electronic chemicals sector experienced a decline of 0.3% on October 28, with Siquan New Materials leading the drop [1] - The Shanghai Composite Index closed at 3988.22, down 0.22%, while the Shenzhen Component Index closed at 13430.1, down 0.44% [1] Stock Performance - Notable gainers in the electronic chemicals sector included: - Huate Gas (688268) with a closing price of 68.52, up 5.42% on a trading volume of 44,800 shares and a turnover of 297 million [1] - Jingrui Electric Materials (300655) closed at 18.25, up 4.23% with a trading volume of 3.09 million shares and a turnover of 56.791 million [1] - Conversely, Siquan New Materials (301489) saw a significant decline of 16.98%, closing at 203.30 with a trading volume of 138,900 shares and a turnover of 298.5 million [2] Capital Flow - The electronic chemicals sector experienced a net outflow of 1.446 billion in main funds, while retail investors saw a net inflow of 1.253 billion [2] - The capital flow for specific stocks showed: - Dinglong Co. (300054) had a main fund net inflow of 37.85 million, but retail investors had a net outflow of 22.91 million [3] - Huate Gas (688268) experienced a main fund net inflow of 8.2143 million, with retail investors seeing a net outflow of 8.6272 million [3]

Group 1 - The stock price of Siquan New Materials (301489.SZ) fell by 16.98% to 203.3 yuan, with a trading volume of nearly 3 billion yuan for the day [1] - Jinfu Technology announced that it has received an order from a Taiwanese customer for a custom-developed 0.08mm blade heat dissipation structure, which has been used in the liquid cooling system for the B200 chip [1] - The adaptation plan for the next-generation B300 chip has completed multiple rounds of sample testing with positive feedback and is now entering the production preparation stage [1] Group 2 - Industry insiders suggest that the market performance is partly reflecting the perception that Siquan New Materials' business is being "snatched" [1]

Core Viewpoint - The AI mobile concept sector has seen a significant increase of 3.88% as of the market close on October 24, ranking sixth among concept sectors, with 24 stocks rising, including notable gains from companies like 汇顶科技 (10.00%) and 江波龙 (16.73%) [1][2]. Market Performance - The AI mobile concept sector experienced a net inflow of 28.39 billion yuan, with 17 stocks receiving net inflows, and 7 stocks exceeding 1 billion yuan in net inflows [2][3]. - The top net inflow was from 胜宏科技, which saw a net inflow of 10.54 billion yuan, followed by 领益智造 (5.68 billion yuan) and 汇顶科技 (3.14 billion yuan) [2][3]. Stock Performance - Key performers in the AI mobile concept sector included: - 胜宏科技: +7.95% with a net inflow ratio of 5.65% [3] - 领益智造: +4.65% with a net inflow ratio of 14.57% [3] - 汇顶科技: +10.00% with a net inflow ratio of 18.86% [3] - 江波龙: +16.73% with a net inflow ratio of 3.92% [3] - 佰维存储: +10.70% with a net inflow ratio of 3.36% [3] Sector Comparison - Other notable concept sectors included: - Storage chips: +5.66% - National big fund holdings: +4.88% - AI PC: +3.99% - Advanced packaging: +3.65% [2]

Core Insights - The electronic chemicals sector experienced a significant increase of 4.32% on October 24, with Siquan New Materials leading the gains [1] - The Shanghai Composite Index closed at 3950.31, up 0.71%, while the Shenzhen Component Index closed at 13289.18, up 2.02% [1] Stock Performance - Siquan New Materials (301489) closed at 232.00, with a rise of 12.39% and a trading volume of 79,600 shares, amounting to a transaction value of 1.767 billion yuan [1] - Zhongjuxin (688549) saw a closing price of 11.19, increasing by 10.68% with a trading volume of 1,042,300 shares, totaling 1.133 billion yuan [1] - Zhongshi Technology (300684) closed at 46.71, up 9.80%, with a trading volume of 365,800 shares, resulting in a transaction value of 1.656 billion yuan [1] - Jingrui Electric Materials (300655) closed at 15.03, increasing by 8.29% with a trading volume of 1,488,300 shares, totaling 2.243 billion yuan [1] - Other notable performers include Xingfu Electronics (688545) at 38.61 (+7.70%), Tiancheng Technology (688603) at 85.42 (+7.60%), and Anji Technology (610889) at 221.42 (+7.02%) [1] Capital Flow - The electronic chemicals sector saw a net inflow of 329 million yuan from main funds, while retail funds experienced a net outflow of 61.63 million yuan [2] - Speculative funds recorded a net outflow of 267 million yuan [2]

Market Overview - The electronic chemicals sector experienced a decline of 0.94% on October 22, with Guanghua Technology leading the drop [1] - The Shanghai Composite Index closed at 3913.76, down 0.07%, while the Shenzhen Component Index closed at 12996.61, down 0.62% [1] Stock Performance - Notable gainers in the electronic chemicals sector included: - Siquan New Materials (301489) with a closing price of 217.20, up 3.24% [1] - Tianyan Technology (688603) with a closing price of 72.07, up 2.85% [1] - Tiantong Co., Ltd. (600330) with a closing price of 10.66, up 2.21% [1] - Conversely, Guanghua Technology (002741) saw a significant decline of 4.32%, closing at 20.37 [2] - Other notable decliners included: - Lier Technology (688683) down 3.67% [2] - Glinda (603931) down 3.08% [2] Capital Flow - The electronic chemicals sector saw a net outflow of 117 million yuan from institutional investors, while retail investors contributed a net inflow of 12.7 million yuan [2] - The detailed capital flow for key stocks included: - Tiantong Co., Ltd. (600330) with a net inflow of 69.31 million yuan from institutional investors [3] - Siquan New Materials (301489) with a net inflow of 69.25 million yuan [3] - Zhongjuxin (688549) with a net inflow of 41.99 million yuan [3]

Market Performance - The electronic chemicals sector increased by 2.31% on October 21, with Siquan New Materials leading the gains [1] - The Shanghai Composite Index closed at 3916.33, up 1.36%, while the Shenzhen Component Index closed at 13077.32, up 2.06% [1] Top Gainers in Electronic Chemicals - Siquan New Materials (301489) closed at 210.38, up 6.32% with a trading volume of 98,100 shares and a transaction value of 2.022 billion [1] - Xingfu Electronics (688545) closed at 37.17, up 6.20% with a trading volume of 83,700 shares and a transaction value of 308 million [1] - Sanhu Xinke (688389) closed at 60.08, up 5.96% with a trading volume of 22,300 shares and a transaction value of 131 million [1] Fund Flow Analysis - The electronic chemicals sector saw a net inflow of 272 million from institutional investors, while retail investors experienced a net outflow of 246 million [2] - The main funds showed varying net inflows and outflows across different stocks, indicating selective investment behavior [3] Individual Stock Fund Flow - Shanghai Xinyang (300236) had a net inflow of 73.46 million from main funds, while retail investors saw a net outflow of 81.89 million [3] - Anji Technology (688019) experienced a net inflow of 35.75 million from main funds, with retail investors also showing a net outflow [3]

Core Viewpoint - The trading volume of Sihuan New Materials reached a record high of 1.938 billion RMB, marking the highest since its listing, with a stock price increase of 6.18% and a turnover rate of 19.77% [2][2][2] Company Overview - Guangdong Sihuan New Materials Co., Ltd. was established on June 2, 2011, with a registered capital of 80.753867 million RMB [2][2][2]

Core Viewpoint - The A-share AI mobile phone concept stocks experienced significant upward movement, with notable gains in several companies on October 21 [1] Company Summaries - Daoming Optics reached the daily limit increase [1] - Siquan New Materials rose over 10% [1] - Pengding Holdings, Furong Technology, and Green Precision also saw increases in their stock prices [1]