Core Viewpoint - Zhonghua Rock and Soil announced that its stock price experienced an abnormal fluctuation, with a cumulative increase of 20% over three consecutive trading days from October 20 to October 22, 2025 [1] Company Situation - The company confirmed that its current operating conditions are normal and that there have been no significant changes in its internal or external operating environment [1] - The company does not anticipate any major changes in the near future and has no undisclosed significant matters [1] Investor Advisory - The company issued a reminder to investors to be cautious of trading risks and to make rational investment decisions due to the short-term significant increase in stock price [1]

证券代码：002542 证券简称：中化岩土 公告编号：2025-089 中化岩土集团股份有限公司 股票交易异常波动公告 本公司及董事会全体成员保证信息披露内容的真实、准确 和完整，没有虚假记载、误导性陈述或重大遗漏。 特别提示： 2．公司未发现近期公共传媒报道了可能或已经对公司股票 交易价格产生较大影响的未公开重大信息。 3．公司股票价格短期涨幅较大，公司郑重提醒广大投资者 注意交易风险，审慎决策、理性投资。 一、股票交易异常波动的情况介绍 中化岩土集团股份有限公司（以下简称"公司"或"本公司"） 股票（证券简称：中化岩土，证券代码：002542）交易价格于 2025 年 10 月 20 日、2025 年 10 月 21 日、2025 年 10 月 22 日连 续三个交易日收盘价格涨幅偏离值累计达到 20%。根据《深圳 证券交易所交易规则》的有关规定，属于股票交易异常波动的 = 1 − $$\blacksquare$$ 情况。 二、关注、核实情况说明 针对公司股票异常波动，经公司对有关事项核查，并向公 司控股股东及实际控制人书面核实，现将有关情况说明如下： 1．公司前期披露的信息不存在需要更正、补充之处。 1 ...

Core Viewpoint - Zhonghua Rock and Soil (002542.SZ) announced that its stock price has experienced an abnormal fluctuation, with a cumulative closing price deviation of 20% over three consecutive trading days [1] Summary by Relevant Sections - **Stock Price Movement** - The company's stock price has shown a significant increase, with a cumulative closing price deviation of 20% over three trading days, indicating abnormal trading activity [1] - **Company Disclosure** - The company confirmed that there are no corrections or supplements needed for previously disclosed information, and no significant undisclosed information has been found that could impact stock trading [1] - **Operational Status** - There have been no major changes in the company's recent operational conditions or external business environment [1] - **Disclosure Compliance** - The company, its controlling shareholders, and actual controllers have no undisclosed significant matters related to the company [1]

Core Insights - The professional engineering sector saw a rise of 0.71% on October 22, with Zhonghua Rock and Soil leading the gains [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 - Zhonghua Rock and Soil (002542) closed at 4.46, up 10.12% with a trading volume of 1.99 million shares and a transaction value of 884 million [1] - China Aluminum International (601068) closed at 5.93, up 10.02% with a trading volume of 475,200 shares and a transaction value of 267 million [1] - Tianwo Technology (002564) closed at 9.02, up 10.00% with a trading volume of 555,900 shares and a transaction value of 490 million [1] - Other notable performers include Zhongyan Dadi (003001) up 7.06% and Beifang International (000065) up 5.44% [1] Capital Flow - The professional engineering sector experienced a net inflow of 413 million in main funds, while retail funds saw a net outflow of 742,620 [2][3] - Major stocks like Beifang International and Tianwo Technology attracted significant main fund inflows of 207 million and 110 million respectively [3] - Conversely, retail investors showed a net outflow from several stocks, including Tianwo Technology and Zhonghua Rock and Soil [3]

Group 1 - The concept of "deep earth economy" has emerged as a market highlight, with several stocks experiencing significant gains, including De Shi Co., which hit a 20% limit up [1][4] - The deep earth economy focuses on the development of underground space and deep resources, covering areas such as geological exploration, underground engineering, deep drilling equipment, and technical services, aimed at addressing the depletion of surface resources and ensuring national energy security [4] - The Ministry of Natural Resources has indicated that during the 14th Five-Year Plan period, standardization efforts will focus on emerging industries like deep sea and deep earth [4] Group 2 - The A-share market experienced fluctuations, with major indices mostly declining; the Shanghai Composite Index fell by 0.44%, while the North China 50 Index rose by 1.19% [3] - The media sector led the gains, with a peak increase of over 1%, and several stocks, including Hubei Broadcasting, hitting the limit up [3] - The real estate sector also showed strong performance, with multiple stocks such as Yingxin Development and Guangming Real Estate reaching limit up [3] Group 3 - Gold-related stocks faced significant declines due to a sharp drop in gold prices, with several stocks in the A-share market and Hong Kong market experiencing losses exceeding 5% [6][5] - The price of gold on the Shanghai Gold Exchange fell sharply, with the Au99.99 contract dropping over 5% and reaching a low of 932 yuan per gram [6] - Silver prices also plummeted, with the main silver futures contract on the Shanghai Futures Exchange experiencing a drop of over 5% [7] Group 4 - The new stock Marco Polo saw a dramatic increase of over 190% on its debut, being one of the largest manufacturers and sellers of building ceramics in China [8] - Marco Polo operates five production bases in China and the U.S., focusing on both glazed and unglazed tiles, and has established several innovation platforms and high-tech enterprises [8]

Core Viewpoint - The concept of "deep earth economy" has emerged as a market highlight, with several stocks experiencing significant gains, particularly in the context of A-share market fluctuations [2][5][9]. Market Performance - On October 22, the A-share market experienced volatility, with major indices mostly declining. The Shanghai Composite Index fell by 0.44%, the Shenzhen Component Index by 0.81%, and the ChiNext Index by 0.89%. In contrast, the North Star 50 Index rose by 1.19% [4]. - The media sector led the gains, with a peak increase of over 1%, and several stocks, including Hubei Broadcasting, hitting the daily limit [4]. - The real estate sector also showed strength, with multiple stocks such as Yingxin Development and Bright Real Estate reaching their daily limit [4]. Deep Earth Economy - The deep earth economy focuses on the development of underground space and deep resources, encompassing geological exploration, underground engineering, deep drilling equipment, and technical services. This new economic model aims to address the depletion of surface resources and ensure national energy security and strategic development [8][9]. - Stocks related to the deep earth economy, such as Deshi Co., China Minmetals, and North China Holdings, saw significant price increases, with Deshi Co. hitting a 20% limit up [2][5]. Gold Sector Decline - The gold sector faced substantial declines, with multiple gold mining stocks dropping significantly. For instance, Western Gold fell over 6%, and several others saw declines exceeding 5% [11][14]. - The international gold price experienced a sharp drop, with the Shanghai Gold Exchange's Au99.99 contract price falling by over 5%, reaching a low of 932 yuan per gram [14]. New Stock Performance - The newly listed stock Marco Polo saw a dramatic increase, with its price rising over 190% during the morning session [16]. - Marco Polo is recognized as one of the largest manufacturers and sellers of building ceramics in China, with significant production capabilities across multiple locations [19].

Market Overview - The Shanghai Composite Index rose by 1.36% on October 21, with 30 industries experiencing gains, led by the communication and electronics sectors, which increased by 4.90% and 3.50% respectively [1] - The construction and decoration industry ranked third in terms of daily gains [1] - The coal industry was the worst performer, declining by 1.02% [1] Capital Flow Analysis - The net inflow of capital in the two markets reached 27.724 billion yuan, with 17 industries seeing net inflows [1] - The electronics sector had the highest net inflow of capital at 12.028 billion yuan, corresponding to a daily increase of 3.50% [1] - The communication sector followed with a net inflow of 5.525 billion yuan and a daily increase of 4.90% [1] - Conversely, 14 industries experienced net outflows, with the banking sector leading at a net outflow of 1.705 billion yuan, followed by the coal industry with a net outflow of 1.409 billion yuan [1] Construction and Decoration Industry Performance - The construction and decoration industry saw a daily increase of 2.36%, with a net inflow of 1.392 billion yuan [2] - Out of 156 stocks in this sector, 136 stocks rose, including 8 that hit the daily limit, while 13 stocks fell, with 1 hitting the lower limit [2] - The top three stocks with the highest net inflow were Tai Chi Industrial (5.05 billion yuan), Zhonghua Rock (1.95 billion yuan), and Huilv Ecology (1.47 billion yuan) [2] Capital Inflow and Outflow in Construction and Decoration Industry - The top stocks by capital inflow included: - Tai Chi Industrial: +10.00%, 9.42% turnover, 504.52 million yuan inflow - Zhonghua Rock: +10.05%, 4.85% turnover, 195.12 million yuan inflow - Huilv Ecology: +10.03%, 10.95% turnover, 147.47 million yuan inflow [2] - The top stocks by capital outflow included: - Xinjiang Jiaojian: -0.57%, 8.92% turnover, -71.11 million yuan outflow - *ST Dongyi: +4.92%, 17.62% turnover, -53.97 million yuan outflow - Guosheng Technology: +2.78%, 26.53% turnover, -47.14 million yuan outflow [4]

Market Performance - The professional engineering sector increased by 1.79% on the previous trading day, with Zhonghua Rock and Soil 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] Key Stocks in Professional Engineering Sector - Zhonghua Rock and Soil (002542) closed at 4.05, up 10.05%, with a trading volume of 853,400 shares and a transaction value of 342 million [1] - Aiman Co., Ltd. (605289) closed at 75.26, up 6.68%, with a trading volume of 36,600 shares and a transaction value of 268 million [1] - Stock performance details for other companies in the sector include: - Stock Code 300517 (Cunliang Development) closed at 11.95, up 5.01% [1] - Stock Code 600477 (Hangxiao Steel Structure) closed at 2.86, up 4.76% [1] - Stock Code 920019 (Tongguan Mining Construction) closed at 22.18, up 4.62% [1] Capital Flow Analysis - The professional engineering sector saw a net inflow of 205 million from institutional investors, while retail investors experienced a net inflow of 42.9 million [2] - The main capital flow details indicate that Zhonghua Rock and Soil had a net inflow of 193 million, accounting for 56.49% of the total [3] - Other notable net inflows include: - North International (000065) with a net inflow of 46.79 million [3] - China Metallurgical Group (601618) with a net inflow of 28.03 million [3]

（文章来源：每日经济新闻） 每经AI快讯，10月21日，深地经济概念盘中持续走强，正元地信20%涨停，此前中裕科技、德石股份、 山河智能、中化岩土、山东墨龙等多股涨停，恒立钻具、四方达涨超10%。 ...

Market Overview - The three major indices opened higher, with the Shanghai Composite Index up 0.18%, the Shenzhen Component Index up 0.52%, and the ChiNext Index up 0.81% [1] - As of the report, the ChiNext Index rose by 2.03%, the Shanghai Composite Index increased by 0.56%, and the Shenzhen Component Index gained 1.45% [1] - Nearly 3,500 stocks in the market experienced gains, with sectors such as deep earth economy, oil and gas, engineering machinery, and fruit supply chain leading the increases [1] CPO Concept Stocks - The CPO concept continued its strong performance, with stocks like Huayou Ecology and Zhongfu Electric Circuit seeing significant gains [2] - Huayou Ecology recorded a 10.03% increase, while Zhongfu Electric Circuit surged by 14.43% [3] Individual Stock Highlights - Zhonghua Rock Soil (002542) hit the daily limit within a minute of opening, indicating strong market interest [4] - Contemporary Amperex Technology Co., Limited (CATL) saw its A-shares rise by 3.32% to 378.67 CNY per share, while its H-shares increased by over 5% to 556 HKD per share [6] - CATL reported a net profit of 18.55 billion CNY for Q3 2025, marking a 41.2% year-on-year increase, and revenue of 104.19 billion CNY, up 12.9% year-on-year [6][7]