Core Viewpoint - The 3D printing sector is experiencing a resurgence, with significant stock performance from companies like Changjiang Materials, which has seen a notable increase in its stock price and trading volume [1][2]. Company Overview - Changjiang Materials is a major supplier of coated sand and waste sand recycling solutions in China, focusing on the research, production, and sales of casting silica sand, coated sand, and sand cores [2]. - The company operates multiple production bases across various provinces, equipped with advanced automated production lines, enhancing its ability to meet customer demands and improve industry recognition [2]. Financial Performance - In the first three quarters of the year, Changjiang Materials reported a total revenue of 834 million yuan, representing a year-on-year growth of 17% [2]. - The net profit attributable to shareholders for the same period was 114 million yuan, reflecting a year-on-year increase of 22.69% [2]. Industry Trends - The 3D printing industry is poised for growth, with a projected global market size of $24.61 billion (approximately 170 billion yuan) by 2024, and an expected compound annual growth rate (CAGR) of 18.5% from 2024 to 2034 [3]. - Changjiang Materials has already made strides in the 3D printing sector, indicating plans to expand its product offerings in 3D printing sand and provide related services to enhance its application in the casting industry [2].

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]