Group 1 - The pesticide industry is nearing the end of inventory destocking, with profitability continuing to recover. The market remains oversupplied, but inventory levels are returning to normal, leading to price increases in several products such as Acetochlor and Abamectin [3][4][20] - As of October 19, 2025, the China Agricultural Chemicals Price Index reported 74.73 points, a year-on-year decrease of 0.09%, while the herbicide raw material price index increased by 3.42% year-on-year to 85.79 points [3][14] - Major international agricultural chemical companies like Syngenta and FMC have significantly reduced their inventory levels, indicating that the destocking phase in the pesticide industry is almost complete [4][20] Group 2 - The profitability of the pesticide sector has shown rapid recovery, with net profit growth rates turning positive since Q4 2024, recording increases of 58%, 65%, 213%, and 281% over the last four quarters [22][24] - YingTai Bio, a leading agricultural product provider, reported a revenue of 4.434 billion yuan for the first three quarters of 2025, a year-on-year increase of 2.47%, and a net profit growth of 95.14% [6][27] - The company has successfully reduced its inventory to 1.335 billion yuan, returning to levels seen in 2020, demonstrating effective destocking [28][29] Group 3 - The North Exchange's chemical new materials sector saw a weekly increase of 3.85%, with all sub-industries performing well [5][34] - The North Exchange 50 index closed at 1472.08 points, reflecting a weekly increase of 2.74% [32][33] - Notable individual stock performances included HuiFeng Diamond (+17.12%) and Zhongyu Technology (+16.82%) [41][43] Group 4 - The report highlights the price trends of various chemical products, including Brent crude oil at $66.43 per barrel, with a weekly increase of 8.39% [45] - The price of glyphosate, a key pesticide, is reported at 27,500 yuan per ton, with a year-on-year increase of 10% [45][62] - The report provides a comprehensive overview of price movements across different chemical categories, indicating market dynamics [45][46]

2025 年 10 月 26 日 北交所战配资格优化，建议北证主 题公募、险资积极参与 ——北交所策略周报（20251020-20251026） 本周策略观点： 本周市场行情： 北交所新股： 新三板动态： ⚫ 本周新挂牌 15 家，摘牌 6 家，周新增计划融资 0.88 亿元，完成融资 7.99 亿元。 风险提示： ⚫ 个股业绩季度波动过大风险，宏观经济下行的风险。 相关研究 证 券 研 究 报 告 证券分析师 刘靖 A0230512070005 liujing@swsresearch.com 王雨晴 A0230522010003 wangyq@swsresearch.com 郑菁华 A0230525060001 zhengjh@swsresearch.com 汪秉涵 A0230525090003 wangbh@swsresearch.com 研究支持 吕靖华 A0230124070002 lvjh@swsresearch.com 联系人 郑菁华 (8621)23297818× zhengjh@swsresearch.com 研 究 专 题 研 请务必仔细阅读正文之后的各项信息披露与声明 本研究报告仅通过邮件 ...

Market Performance - The Shanghai Composite Index closed up 0.22%, while the Shenzhen Component Index also rose by 0.22%, and the ChiNext Index increased by 0.09% [1] - Over 2,100 stocks declined across both markets, with a total trading volume of 1.64 trillion [1] Sector Analysis - Cultivated diamond stocks experienced a significant decline, with an overall drop of 3.19%. Notable declines included Huifeng Brick Diamond down 13.04%, and Liliang Brick Diamond down 7.97% [3] - The engineering machinery sector weakened, with construction machinery hitting the daily limit down [3] - The coal sector saw a strong performance, rising by 3.8%, with Dayou Energy achieving eight consecutive trading limit ups [3] - Local Shenzhen stocks remained strong, with over ten stocks, including Teli A and Shenzhen Saige, hitting the daily limit up [3] - Lithium mining concept stocks strengthened in the afternoon, with Shengxin Lithium Energy hitting the daily limit up [3] - Quantum technology stocks showed active performance towards the end of the trading day, with multiple stocks like Shenzhou Information and Keda Guochuang hitting the daily limit up [3] Market Sentiment - The market exhibited uncertainty with a sharp drop in the morning followed by a reversal in the afternoon, indicating rapid and chaotic shifts in market hotspots [3] - Trading volume continued to decrease, suggesting a lack of strong investor confidence [3] - Bank stocks experienced a pullback during the day, indicating a potential response to market corrections [3]

Core Viewpoint - The superhard materials index experienced a 2.01% increase during intraday trading, with most constituent stocks rising significantly [1] Company Performance - Guojijinggong reached the daily limit increase [1] - Huifeng Diamond rose by 8.29% [1] - World increased by 3.41% [1] - Sifangda saw a rise of 2.76% [1] - San Chao New Materials grew by 2.44% [1]

Core Viewpoint - The deep earth economy is emerging as a potential trillion-level new sector, following the low-altitude and deep-sea economies, with significant investment interest and market activity driven by government initiatives [1][2]. Industry Overview - The deep earth economy encompasses economic activities and related industrial chains focused on the development of deep earth resources and underground space utilization, including resource exploration, underground construction, core equipment manufacturing, and technical services [2]. - China's deep and ultra-deep oil and gas resources are estimated at 671 million tons of oil equivalent, accounting for approximately 34% of the country's total oil and gas resources [2]. - The overall development rate of deep earth resources is currently below 8%, indicating substantial untapped potential [2]. Market Activity - On October 23, the deep earth economy sector saw a trading volume of 49.249 billion yuan, with notable stock performances including multiple companies hitting trading limits [1]. - Companies such as Shandong Molong and Tianjian Group experienced significant stock price increases, while others like Huifeng Diamond and Power Diamond faced noticeable pullbacks [1]. Company Strategies - The Ministry of Natural Resources predicts that the global deep earth economy will exceed $25 trillion by 2030, with the domestic market expected to surpass 5 trillion yuan between 2026 and 2030, and an initial commercialization growth rate of 40% [3]. - Companies like Yipuli and Surveying and Mapping Co. have expressed their commitment to exploring opportunities in the deep earth economy, focusing on technological advancements and strategic business expansions [3][4]. - Meian Sen is developing mining robots for autonomous inspections in underground spaces, while China Communications Construction Company is forming a collaborative innovation group for deep underground space utilization [4]. Company Clarifications - Companies such as Construction Industry, Chujian New Materials, and Baotailong have clarified that they do not engage in deep earth economy-related businesses [5].

Core Viewpoint - The article emphasizes the urgent need to address the "hotspot" issues in semiconductor chips due to increasing power density and shrinking sizes, highlighting diamond as an ideal thermal management material due to its superior thermal conductivity and other advantageous properties [2][5][10]. Group 1: Thermal Management Challenges - The semiconductor industry is progressing towards smaller nodes (2nm, 1.6nm, and 1.4nm), leading to unprecedented thermal management challenges as chips generate significant heat during operation [2][5]. - Ineffective heat dissipation can create hotspots within chips, resulting in performance degradation, hardware damage, and increased costs. For instance, when chip surface temperatures reach 70-80°C, reliability decreases by 10% for every 1°C increase [5][6]. Group 2: Advantages of Diamond as a Thermal Material - Diamond exhibits the highest thermal conductivity among known materials, reaching 2000 W/m·K, which is significantly higher than silicon, silicon carbide, and gallium arsenide [3][10]. - Diamond's bandgap of approximately 5.5 eV allows it to operate stably in high-temperature and high-voltage environments, making it suitable for high-power electronic devices [3][11]. - The material's exceptional current-carrying capacity, mechanical strength, and radiation resistance further enhance its reliability and lifespan in demanding conditions [3][11]. Group 3: Applications and Innovations - Diamond can be utilized in various forms, including diamond substrates, heat sinks, and microchannel structures, to effectively manage heat in semiconductor applications [10][11]. - Companies like Akash Systems have developed diamond cooling technologies that can reduce GPU hotspot temperatures by 10-20°C, cut fan speeds by 50%, and extend server lifespans while saving millions in cooling costs [10]. - The Diamond Foundry has made significant advancements in producing single-crystal diamond wafers, which can enhance GPU performance by three times and reduce temperatures by 60% [38][40]. Group 4: Industry Developments and Company Cases - The diamond industry in China is concentrated in regions like Henan, Shandong, and Jiangsu, with companies like Zhongnan Diamond and Huanghe Whirlwind dominating the market [31]. - Wald has reported a revenue of 679 million yuan in 2024, with a focus on CVD diamond heat sink products, indicating a growing market for diamond-based thermal management solutions [54][59]. - Power Diamond is collaborating with Taiwan's Jiesao Enterprise to enhance its capabilities in diamond functional materials, particularly for semiconductor cooling applications [65].

10月23日，A股三大指数早盘震荡走低，尾盘拉升集体翻红。截至收盘，沪指涨0.22%，深证成指涨0.22%，创业板指涨0.09%。全市场成交额 1.66万亿元，较前一交易日缩量295亿元，近3000股上涨。 | 代码 | 名称 | 现价 | 涨跌 | 涨幅 | | --- | --- | --- | --- | --- | | 000001 | 上证指数 | 3922.41 | +8.65 | +0.22% | | 399001 | 深证成指 | 13025.45 | +28.84 | +0.22% | | 399006 | 创业板指 | 3062.16 | +2.84 | +0.09% | 盘面上，深圳印发并购重组高质量发展行动方案，深圳本地股走高，深赛格、深水规院等多股涨停；煤炭板块爆发，山西焦煤、大有能源等多 股涨停；谷歌量子计算再现重大突破，量子锂科技板块走强，科大国创20CM涨停；锂矿概念、影视院线、文化传媒等概念涨幅居前。另一方 面，超硬材料、培育钻石板块下挫，惠丰钻石跌逾13%；工程机械板块走低，建设机械跌超8%；CPO概念、创新药、油气等板块下跌。 消息面上，10月22日，Alphabet旗下 ...

Market Overview - The three major A-share indices experienced fluctuations in early trading but rallied to close in the green, with the Shanghai Composite Index up 0.22% at 3922 points, the Shenzhen Component Index up 0.22%, and the ChiNext Index up 0.09% [1] - The total market turnover was 1.66 trillion yuan, a decrease of 29.5 billion yuan compared to the previous trading day, with nearly 3000 stocks rising [1] Sector Performance - The Shenzhen local stocks surged following the issuance of a high-quality development action plan for mergers and acquisitions, with stocks like Shenzhen Saiseg and Shenzhen Water Planning Institute hitting the daily limit [1] - The coal sector saw significant gains, with Shanxi Coking Coal, Dayou Energy, and Zhengzhou Coal Electricity also reaching the daily limit [1] - Quantum technology stocks strengthened due to Google's breakthrough in quantum computing, with Keda National Innovation hitting the daily limit [1] - The mining concept stocks rose, with Shengxin Lithium Energy hitting the daily limit [1] - Other sectors that performed well included superconducting concepts, short drama concepts, and cultural media [1] Declining Sectors - The superhard materials and cultivated diamond sectors faced declines, with Huifeng Diamond dropping over 13% [1] - The engineering machinery sector also fell, with Construction Machinery down over 8% [1] - The CPO concept weakened, with Tianfu Communication leading the decline [1] - Non-metallic materials, biological products, and mining industries were among the sectors with the largest declines [1] Top Gainers - The top gainers included sectors such as petrochemicals, fertilizers and pesticides, and coal, with respective increases of 2.70%, 1.74%, and 1.97% [2] - Other sectors with notable gains included oil and natural gas, ports, and comprehensive categories, with increases of 1.60%, 1.72%, and 1.519% respectively [2]

Group 1 - The A-share market for synthetic diamond stocks experienced a collective decline, with Huifeng Diamond dropping over 10% and Hengsheng Energy hitting the daily limit down [1] - Other companies such as Sifangda, Chaohongji, and Liliang Diamond also saw declines exceeding 6%, while Huanghe Xuanfeng was the only stock to rise, gaining over 4% [1] Group 2 - Specific stock performance included Huifeng Diamond down 10.38% with a market cap of 3.256 billion, Hengsheng Energy down 10% with a market cap of 8.593 billion, and Sifangda down 6.98% with a market cap of 6.861 billion [2] - Year-to-date performance showed Hengsheng Energy with a significant increase of 183.21%, while Huifeng Diamond had a decline of 7.84% [2]

Core Viewpoint - The superhard materials sector is experiencing a significant decline, with multiple companies facing substantial stock price drops [1] Company Performance - Hengsheng Energy has hit the daily limit down, indicating a severe loss in investor confidence [1] - Huifeng Diamond has decreased by nearly 10%, reflecting broader market trends affecting the sector [1] - Other companies such as Power Diamond, Sifangda, Guojijiangong, and Zhongbing Hongjian are also experiencing declines, contributing to the overall downturn in the superhard materials market [1]