本报记者 冯雨瑶 长江材料在3D打印方面早有布局。今年9月份，公司在投资者互动平台透露，长江材料有生产用于砂型 3D打印的3D打印砂。未来，公司会继续做大3D打印砂产品，并结合3D打印技术为客户提供样件试制等 服务，增强相关技术和产品在铸造行业的应用。 11月25日早盘时间，3D打印概念再度走强，其中，长江材料（001296）开盘即"一字涨停"，股价封板 30.87元/股，换手率9.29%，总市值46.18亿元，斩获3连板。同时，炬光科技、思看科技、金橙子等概念 股亦纷纷跟涨。 国金证券认为，3D打印行业消费级渗透正当时，新消费浪潮下大有可为。根据Precedence Research数 据，全球3D打印市场规模在2024年达到246.1亿美元（约1700亿元人民币），2024年至2034年CAGR （复合年均增长率）有望达到18.5%。 11月24日晚间，长江材料发布股票交易异常波动公告称，公司股票交易价格连续两个交易日（11月21 日、11月24日）收盘价格涨幅偏离值累计超过20%，根据《深圳证券交易所交易规则》的相关规定，属 于股票交易异常波动的情况。 针对公司股票交易的异常波动，公司对相关事项进行了核 ...

11月25日早盘时间，3D打印概念再度走强，其中，长江材料开盘即"一字涨停"，股价封板30.87元/股，换手率9.29%，总市值 46.18亿元，斩获3连板。同时，炬光科技、思看科技、金橙子等概念股亦纷纷跟涨。 11月24日晚间，长江材料发布股票交易异常波动公告称，公司股票交易价格连续两个交易日（11月21日、11月24日）收盘价格 涨幅偏离值累计超过20%，根据《深圳证券交易所交易规则》的相关规定，属于股票交易异常波动的情况。 针对公司股票交易的异常波动，公司对相关事项进行了核实。长江材料就有关情况说明称，公司前期披露的信息不存在需要更 正、补充之处；公司未发现近期公共传媒报道了可能或已经对本公司股票交易价格产生较大影响的未公开重大信息；近期公司 经营情况正常，内外部经营环境未发生重大变化。此外，公司、控股股东和实际控制人不存在关于本公司的应披露而未披露的 重大事项，或处于筹划阶段的重大事项。 长江材料是国内大型专业覆膜砂生产供应商及废（旧）砂资源化解决方案提供商，主营业务为铸造用硅砂、覆膜砂和砂芯的研 发、生产和销售等。目前，公司在重庆、湖北、江苏、四川、安徽、辽宁、内蒙古等地建有生产基地，拥有35条具有 ...

Core Viewpoint - Changjiang Materials is a leading supplier of coated sand and waste sand recycling solutions in China, with a comprehensive product chain covering the entire coated sand industry [1] Group 1: Business Overview - Established in August 1979 and listed on the Shenzhen Stock Exchange in December 2021, Changjiang Materials is based in Chongqing [1] - The company specializes in the research, production, and sales of casting silica sand, coated sand, and sand cores, as well as the development of recycling technology and equipment for casting waste sand [1] Group 2: Financial Performance - For Q3 2025, Changjiang Materials reported revenue of 834 million yuan, ranking 3rd in the industry, with the top competitor, Suotong Development, generating 12.762 billion yuan [2] - The company's net profit for the same period was 116 million yuan, placing it 4th in the industry, with the leading competitor achieving a net profit of 886 million yuan [2] Group 3: Financial Ratios - As of Q3 2025, Changjiang Materials had a debt-to-asset ratio of 18.92%, lower than the industry average of 32.68%, indicating strong solvency [3] - The gross profit margin for the company was 26.82%, higher than the industry average of 23.72%, reflecting good profitability [3] Group 4: Shareholder Information - As of September 30, 2025, the number of A-share shareholders decreased by 4.20% to 17,900, while the average number of circulating A-shares held per shareholder increased by 4.39% to 4,290.26 [5] - The company has shown growth in revenue and net profit year-on-year, with significant contributions from its core products [5] Group 5: Future Outlook - The company is expected to benefit from the growth in the automotive and domestic oil and gas extraction industries, with a projected compound annual growth rate of 26.46% for net profit over the next three years [5]

Core Viewpoint - The company is focused on maintaining its core business while gradually pursuing a diversified development strategy, aiming to enhance its market share and product profitability through new environmentally friendly products and technologies. Group 1: Company Performance and Strategy - The company reported a year-on-year increase in profitability for the first quarter of 2025 [3] - The company plans to enhance its market share in the raw sand and coated sand markets following the full production capacity of its Zhangwu quartz sand mine [2] - The company aims to develop a business system suitable for its growth, focusing on quartz sand as the core business and strengthening its presence in the casting materials and fracturing proppants markets [4] Group 2: Industry Outlook - The casting materials industry is expected to evolve towards environmentally friendly, low-emission products, with a shift from organic to inorganic materials [4] - The widespread application of 3D printing technology in the industry is anticipated to raise the standards for casting materials [4] Group 3: Technological Advancements - The company has begun applying its products in 3D printing and is gradually expanding this application, which is expected to significantly reduce costs [5] - The company has developed low-ammonia and ammonia-free coated sand products to minimize emissions during the casting process [9] Group 4: Market Position and Competition - The company has a complete business system from raw sand to coated sand and waste sand recycling, ensuring a competitive advantage in the industry [11] - The company does not engage in price-cutting strategies to avoid "involution" competition, focusing instead on product quality and technological advantages [7] Group 5: Customer Base and Orders - The company currently has stable orders and serves several prominent clients, including Chang'an Automobile, Top Group, and China National Petroleum [12]

General Provisions - The company is established as a joint-stock limited company in accordance with the Company Law and other relevant regulations [1] - The company was approved by the China Securities Regulatory Commission to issue 20,550,000 shares of common stock to the public on November 12, 2021 [1][3] - The registered capital of the company is RMB 149,591,086 [2] Business Objectives and Scope - The company's business objective is to create value for customers, provide returns for shareholders, and fulfill social responsibilities through technological progress and product innovation [3] - The business scope includes the production and sale of various materials such as coated sand, inorganic binders, and oil drilling technology services [3] Shares - The company issues shares in the form of stocks, adhering to principles of openness, fairness, and justice [4] - The total number of shares issued by the company is 149,591,086, all of which are common shares [4][5] Shareholder Rights and Responsibilities - Shareholders have rights to dividends, participate in shareholder meetings, supervise company operations, and access company documents [10] - Shareholders are obligated to comply with laws and regulations, pay for their subscribed shares, and not misuse their rights to harm the company or other shareholders [13] Shareholder Meetings - The company holds annual and temporary shareholder meetings, with the annual meeting occurring within six months after the end of the previous fiscal year [48] - Shareholder meetings can be conducted in person or via electronic communication, and all shareholders have the right to attend and vote [50][51] Voting and Resolutions - Resolutions at shareholder meetings can be ordinary or special, with ordinary resolutions requiring a simple majority and special resolutions requiring two-thirds approval [80][81] - Shareholders must avoid conflicts of interest during voting on related party transactions, ensuring that related shareholders abstain from voting [84]