证券代码：301158 证券简称：德石股份 公告编号：2025-039 德州联合石油科技股份有限公司 本次变更后，公司首次公开发行股票的持续督导保荐代表人为乔军文先生和 孙月芹女士。 公司董事会对付玉龙先生在公司首次公开发行股票并在创业板上市及持续 督导期间所做出的贡献表示衷心感谢！ 特此公告。 德州联合石油科技股份有限公司董事会 2025 年 8 月 29 日 附件： 关于变更持续督导保荐代表人的公告 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、 误导性陈述或者重大遗漏。 德州联合石油科技股份有限公司（以下简称"公司"）近日收到国新证券股 份有限公司（以下简称"国新证券"）出具的《关于德州联合石油科技股份有限 公司持续督导保荐代表人变更的函》。国新证券作为公司首次公开发行股票的保 荐机构，曾指定付玉龙先生、孙月芹女士作为公司首次公开发行股票的持续督导 保荐代表人，法定持续督导期限至 2025 年 12 月 31 日。 近日，付玉龙先生因工作变动原因，不再担任该项目持续督导的保荐代表人。 为保证持续督导工作有序进行，国新证券现委派乔军文先生（简历见附件）为该 项目持续督导的保荐代表 ...

Company Overview - 德州联合石油科技股份有限公司 is located in Shandong Province and was established on June 30, 2004. The company was listed on January 17, 2022. Its main business involves the research, production, sales, and leasing of specialized tools and equipment for oil drilling [1]. Financial Performance - For the first half of 2025, 德石股份 achieved operating revenue of 277 million yuan, representing a year-on-year growth of 26.60%. The net profit attributable to shareholders was 45.17 million yuan, reflecting a year-on-year increase of 29.24% [2]. - Cumulative cash dividends since the A-share listing amount to 133 million yuan, with 115 million yuan distributed over the past three years [3]. Shareholder Information - As of July 31, the number of shareholders for 德石股份 was 16,300, a decrease of 0.25% from the previous period. The average number of circulating shares per shareholder increased by 0.25% to 9,001 shares [2]. - As of June 30, 2025, 中信保诚多策略混合(LOF)A was the seventh largest circulating shareholder, holding 677,400 shares as a new shareholder [3]. Financing and Trading Activity - On August 27, 德石股份 experienced a decline of 4.37% in stock price, with a trading volume of 150 million yuan. The financing buy-in for that day was 16.37 million yuan, while the financing repayment was 14.94 million yuan, resulting in a net financing buy-in of 1.43 million yuan. The total financing and securities lending balance reached 101 million yuan [1]. - The current financing balance of 101 million yuan accounts for 3.61% of the circulating market value, which is above the 80th percentile level over the past year, indicating a high level of financing activity [1].

Group 1 - The stock price of Dezhou United Petroleum Technology Co., Ltd. (德石股份) closed at 19.38 yuan on August 25, 2025, with a decrease of 0.62% and a turnover rate of 4.55% [1] - The company reported a total revenue of 277 million yuan for the first half of 2025, representing a year-on-year growth of 26.60%, and a net profit attributable to shareholders of 45.17 million yuan, up 29.24% year-on-year [1] - The company's liquidity ratios are strong, with a current ratio of 3.381 and a quick ratio of 2.343, while the debt-to-asset ratio stands at 25.78% [1] Group 2 - Dezhou United Petroleum Technology Co., Ltd. has made investments in 4 companies and participated in 757 bidding projects [2] - The company holds 14 trademark registrations and 184 patents, along with 47 administrative licenses [2]

Group 1 - The core point of the article is that Dezhou United Petroleum Technology Co., Ltd. has recently obtained a patent for a new type of acid fracturing hose joint assembly and its preparation method, which may enhance its competitive edge in the oil extraction equipment manufacturing sector [1] - Dezhou United Petroleum Technology Co., Ltd. is fully focused on the manufacturing of oil drilling equipment, with 100% of its revenue coming from this segment for the year 2024 [1] - As of the report, the market capitalization of Dezhou United Petroleum Technology Co., Ltd. is 2.9 billion yuan [1] Group 2 - The A-share market has seen trading volumes exceed 2 trillion yuan for eight consecutive days, indicating strong market activity [1] - Major brokerage firms are actively recruiting for autumn positions, highlighting a demand for talent in the financial services industry [1] - The article mentions 25 job positions available, suggesting a diverse range of opportunities within the sector [1]

上述发明专利的取得不会对公司近期生产经营产生重大影响，但有利于公司进一 步完善知识产权保护体系，发挥自主知识产权优势，并形成持续创新机制，巩固公司 技术创新发展的领先地位。 特此公告。 德州联合石油科技股份有限公司（以下简称"公司"）近日取得国家知识产 | 专利名称 | 专利号 | 专利申请日 | | | | 授权公告日 | | | 专利 | 专利权人 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | 类型 | | | 一种整体 | | | | | | | | | | | | 硫化式酸 | | | | | | | | | | 德州联合石 | | 化压裂软 | ZL202510702997.3 | 2025 年 05 月 | 29 | 日 | 2025 年 | 08 | 月 | 22 日 | 发明 | 油科技股份 | | 管接头总 | | | | | | | | | 专利 | | | 成及其制 | | | | | | | | | | 有限公司 | | 备方法 | | | | | | ...

Group 1 - The combustible ice concept rose by 3.12%, ranking first among concept sectors, with 12 stocks increasing, including ShenKong Co., which hit the daily limit, and others like QianNeng HengXin, XinJin Power, and China Oilfield Services showing gains of 6.41%, 5.90%, and 2.77% respectively [1] - The main capital inflow into the combustible ice sector was 364 million yuan, with 8 stocks receiving net inflows, and 5 stocks seeing inflows exceeding 10 million yuan, led by ShenKong Co. with a net inflow of 239 million yuan [1] - The top three stocks by net inflow were ShenKong Co., China Petroleum & Chemical Corporation, and China Oilfield Services, with net inflows of 239 million yuan, 111 million yuan, and 32 million yuan respectively [1] Group 2 - In terms of capital inflow ratios, ShenKong Co., China Oilfield Services, and China Petroleum & Chemical Corporation had the highest net inflow rates at 26.96%, 8.97%, and 6.54% respectively [2] - The capital inflow leaderboard for the combustible ice concept showed ShenKong Co. with a daily increase of 10.00% and a turnover rate of 24.14%, followed by China Petroleum & Chemical Corporation with a 2.45% increase and a turnover rate of 0.31% [2] - Other notable stocks included QianNeng HengXin with a 6.41% increase and a turnover rate of 10.84%, and XinJin Power with a 5.90% increase and a turnover rate of 23.00% [3]

Group 1 - The key clients of Sichuan Shengshi Steel Union International Trade Co., Ltd. include major state-owned enterprises directly supervised by the State-owned Assets Supervision and Administration Commission, covering various sectors such as construction, infrastructure, and energy engineering [1] Group 2 - The core list of top ten central enterprise construction companies includes China State Construction Engineering Corporation, which has a business focus on housing construction (over 50% of global super high-rise buildings) and infrastructure [4] - China Railway Group Limited specializes in railway engineering, accounting for 66% of the national railway mileage, with a significant increase of 51.6% in overseas business [4] - China Railway Construction Corporation is responsible for 52% of the national high-speed rail mileage and has established construction standards for high-speed rail in China [4] Group 3 - China Communications Construction Company focuses on port channels and cross-sea bridges, with a new contract amount of 9910.54 billion yuan in the first half of 2025 [5] - China Power Construction Group is a leader in hydropower, with a global market share exceeding 50% in overseas hydropower [5] - China Energy Engineering Group is innovating in traditional energy upgrades and has seen a growth rate of over 30% in new energy contracts [5] Group 4 - China Metallurgical Group Corporation leads the global market share in metallurgical engineering and is advancing hydrogen metallurgy technology for low-carbon transformation [5] - China Chemical Engineering Group dominates 70% of domestic petrochemical projects and has achieved a 12.3% growth in fine chemical contracts [5] - China National Nuclear Corporation is responsible for all domestic nuclear power units and plays a special role in national defense engineering and nuclear emergency support [5] - China Aneng Construction Group specializes in water conservancy and emergency rescue tasks [6]

Group 1: Company Overview and Market Position - Jerry Holdings is the largest shareholder of the company and focuses on the oil and gas downhole tools industry, with no competition in the same sector [2] - The company has developed a super wear-resistant high-pressure acid fracturing hose, currently in trial use in domestic oilfields, with significant market potential [2][3] Group 2: International Expansion and Acquisitions - The acquisition of American IAE Company is aimed at enhancing the company's technology and expanding into the North American market, which is expected to grow due to rising energy demands [4] - The company has seen a 29.18% increase in overseas sales revenue, amounting to 80.72 million yuan in the first half of 2025, reflecting a 10 percentage point increase from the same period in 2024 [5] Group 3: Future Growth Strategies - The company plans to maintain growth by focusing on two core strategies: strengthening overseas market presence through subsidiaries and increasing R&D investment to develop new products [6] - Continuous optimization of existing product quality and exploration of emerging industries are also key to fostering new growth opportunities [6]

Group 1 - The stock price of Deshi Co., Ltd. closed at 19.53 yuan on August 12, down 0.76% from the previous trading day [1] - The trading volume on that day was 62,995 hands, with a transaction amount of 123 million yuan, resulting in a turnover rate of 4.30% [1] - Deshi Co., Ltd. specializes in the research, production, and sales of oil drilling equipment, including drill bits and tools, and is classified under the specialized equipment manufacturing industry [1] Group 2 - Jerry Co., Ltd. is the largest shareholder of Deshi Co., Ltd., holding 44.15% of its shares [1] - The company stated on its interactive platform that there is no business correlation with Jerry Co., Ltd. [1] - On August 12, the net outflow of main funds for Deshi Co., Ltd. was 8.7956 million yuan, with a cumulative net outflow of 17.2539 million yuan over the past five trading days [1]

Group 1 - The core point of the article is that De Shi Co., Ltd. (301158) confirmed that Jerry Co., Ltd. (002353) is its largest shareholder, holding 44.15% of its shares, but there is no business relationship between the two companies [1] Group 2 - De Shi Co., Ltd. responded to investor inquiries on August 12 regarding its ownership structure and business relationships [1] - Jerry Co., Ltd. is identified as the largest shareholder of De Shi Co., Ltd. with a significant stake [1] - The companies operate independently without any business ties [1]