山东大业股份有限公司（以下简称"公司"）现有独立董事 2 人，分别为王 磊先生、丁鸿雁女士。根据《上市公司独立董事管理办法》相关规定，公司独立 董事对自身的独立性情况进行了自查，并将自查情况提交了董事会。自查结果显 示，公司独立董事均符合 《上市公司独立董事管理办法》第六条的独立性要求， 不存在直接或者间接利害关系，或者其他可能影响其进行独立客观判断关系的情 形，能够独立履行职责，不受公司及其主要股东、实际控制人等单位或者个人的 影响。 二、董事会对独立董事独立性情况的专项意见 山东大业股份有限公司董事会 董事会关于独立董事独立性情况的专项意见 一、独立董事独立性自查情况 经深入核查独立董事王磊先生、丁鸿雁女士的任职经历及个人签署的相关自 查文件，确认各位独立董事在报告期内未在公司担任除独立董事以外的任何职务， 亦未在公司的主要股东单位中担任任何职务。独立董事与公司及其主要股东之间 不存在任何形式的利益冲突、关联关系或其他可能对其独立客观判断产生影响的 情况。公司独立董事在 2024 年度始终保持高度的独立性，其履职行 为符合《上 市公司独立董事管理办法》、《上市公司治理准则》以及《公司章程》中关于独立 董事 ...

山东大业股份有限公司 独立董事王磊 2024 年度述职报告 本人作为山东大业股份有限公司（以下简称"公司"）的独立董事，2024 年 本人严格按照《公司法》、《证券法》、《上市公司治理准则》、《上市公司独立董事 管理办法》、《上海证券交易所上市公司自律监管指引第 1 号——规范运作》等相 关法律、法规、部门规章、规范性文件及《公司章程》、《公司独立董事工作制度》 的有关规定，忠实、勤勉履职，全面关注公司发展，积极出席公司 2024 年度召 开的董事会及其相关专门委员会、股东大会等相关会议，对董事会的各项议案进 行认真审议，并对重大事项独立、客观地发表意见，充分发挥独立董事的独立作 用，维护公司和股东特别是中小股东的合法权益。现将 2024 年度履行职责的情 况报告如下： 一、独立董事基本情况 本人王磊，1977 年生，硕士研究生学历。现任山东财经大学专任教师、副教 授，北京金诚同达（济南）律师事务所兼职律师，兼任山东赫达集团股份有限公 司、山东天鹅棉业机械股份有限公司独立董事。 作为公司独立董事，本人及直系亲属、主要社会关系均未在公司担任除独立 董事以外的任何职务，也未在公司主要股东公司担任任何职务，与公司以 ...

Financial Performance - The company's operating revenue for 2024 was CNY 5,096,870,425.05, a decrease of 8.26% compared to CNY 5,555,921,437.11 in 2023[22] - The net profit attributable to shareholders for 2024 was CNY -170,249,898.24, representing a decline of 277.62% from CNY 95,852,466.43 in 2023[22] - The basic earnings per share for 2024 was CNY -0.50, a decrease of 251.52% compared to CNY 0.33 in 2023[23] - The cash flow from operating activities for 2024 was CNY 487,129,112.44, a decrease of 7.55% compared to CNY 526,925,808.72 in 2023[22] - The company reported a weighted average return on equity of -7.72% for 2024, a decrease of 12.21 percentage points from 4.49% in 2023[24] - The company experienced a significant decline in net profit after deducting non-recurring gains and losses, reporting CNY -183,261,556.32 for 2024 compared to CNY 54,714,657.81 in 2023, a decrease of 434.94%[22] Production and Sales - The production of various steel wires reached 849,000 tons, an increase of 1.52% year-on-year, including 436,000 tons of tire cord steel, 361,800 tons of steel wire for tires, and 51,200 tons of steel wire for hoses, which grew by 1.87%, 0.63%, and 4.91% respectively[32] - The quarterly revenue for Q1 2024 was CNY 1,238,969,008.81, with a net profit of CNY 7,022,010.82, indicating a challenging start to the year[25] - The production volume of tire wire was approximately 436 million kg, with a year-on-year increase of 1.87%[59] - The production of OTR steel cord is projected to reach 73,000 tons in 2024, a year-on-year increase of 15.9%[43] Market and Industry Trends - The tire skeleton materials industry in China is transitioning from a development phase to a mature phase, with stable growth expected in the coming years[91] - The tire cord steel wire industry is projected to have significant market opportunities due to China's position as the largest tire consumer and producer globally[91] - The future trend in the tire cord steel wire industry emphasizes the importance of independent innovation as a core competitive advantage[92] - The demand for high-performance radial tires has led to increased requirements for the strength and environmental performance of tire cord steel wire products[93] - The domestic steel cord industry has experienced rapid growth over the past decade, achieving self-sufficiency in production and quality for the domestic tire market[94] Research and Development - The company is focusing on optimizing product structure and increasing R&D investment, with significant progress in developing new high-performance steel wire products[33] - Research and development expenses were ¥65,562,352.92, down 20.78% compared to the previous year, indicating reduced investment in innovation[52] - The company plans to increase R&D investment annually to enhance product innovation and maintain technological leadership in the tire cord steel wire industry[97] - The company aims to develop high-performance steel wire products for radial tires and adjust its product structure towards high-end products to meet future market needs[98] Environmental and Social Responsibility - The company invested RMB 1,893.83 million in environmental protection during the reporting period[147] - The company achieved a reduction of 70,585.47 tons in carbon dioxide equivalent emissions through various measures, including the operation of seven solar power stations with a total installed capacity of 71.3 MW[157] - The company has established a waste classification system, separating general waste into recyclable and non-recyclable categories, and hazardous waste is stored in a designated facility for proper disposal[149] - The company has committed to transparency by publishing environmental information on its website and participating in the Shandong Province Pollution Source Monitoring Sharing Information System[156] Corporate Governance - The company adheres to legal regulations to protect investor rights, ensuring independent operations of its board and management[105] - The company has implemented a comprehensive investor relations management system to enhance communication with shareholders and protect their interests[107] - The company has established an insider information management system to ensure compliance with disclosure regulations[108] - The company has a clear decision-making process for determining the remuneration of its directors and supervisors[116] Financial Management - The company plans to seek financing from financial institutions for the year 2024, indicating a proactive approach to capital management[110] - The company is expected to conduct foreign exchange and futures hedging business in 2024, aiming to mitigate financial risks[110] - The company will continue to manage idle funds for cash management purposes, optimizing its financial resources[110] - The company has established a structured approach to profit distribution, considering factors such as profitability, cash flow, and major investment plans[136]

Financial Performance - The company's operating revenue for Q1 2025 was ¥1,210,133,754.06, a decrease of 2.33% compared to ¥1,238,969,008.81 in the same period last year[4] - The net profit attributable to shareholders was ¥4,928,698.41, down 29.81% from ¥7,022,010.82 year-on-year[4] - The net profit after deducting non-recurring gains and losses was -¥3,958,922.64, a decline of 215.94% compared to ¥3,414,679.18 in the previous year[4] - Basic and diluted earnings per share were both ¥0.01, a decrease of 50.00% from ¥0.02 year-on-year[4] - Net profit for Q1 2025 was CNY 2,426,357.45, a decline of 53.2% from CNY 5,181,632.50 in Q1 2024[22] Cash Flow - The net cash flow from operating activities was ¥83,980,510.19, a significant improvement from -¥225,263,996.87 in the same period last year[4] - Operating cash flow for Q1 2025 was CNY 83,980,510.19, compared to a negative cash flow of CNY -225,263,996.87 in Q1 2024[25] - Net cash flow from investing activities was -198,152,671.10, compared to -60,911,164.53 in the previous period[26] - Total cash inflow from financing activities was 1,464,033,402.06, up from 1,154,527,873.33 year-over-year[26] - Net cash flow from financing activities was 51,432,291.20, a decrease from 270,322,669.87 in the prior period[26] - Cash and cash equivalents at the end of the period totaled 124,859,800.58, compared to 90,247,754.05 at the end of the previous period[26] - The company experienced a net decrease in cash and cash equivalents of -58,938,764.11, compared to -13,501,465.06 previously[26] - Cash outflow from investing activities totaled 198,368,304.70, compared to 61,372,590.48 in the prior period[26] - Cash inflow from borrowings was 1,016,190,068.73, slightly down from 1,100,327,873.33 year-over-year[26] - Cash outflow for debt repayment was 457,200,000.00, compared to 503,540,770.79 in the previous period[26] - The impact of exchange rate changes on cash and cash equivalents was 3,801,105.60, up from 2,351,026.47[26] Assets and Liabilities - Total assets increased by 2.09% to ¥7,860,956,491.57 from ¥7,699,799,836.44 at the end of the previous year[5] - Current assets totaled CNY 4,049,381,632.38, slightly up from CNY 4,006,833,703.68, indicating a growth of about 1.06%[15] - Cash and cash equivalents rose to CNY 1,248,022,549.48 from CNY 1,170,628,374.88, marking an increase of approximately 6.61%[15] - Accounts receivable increased to CNY 1,392,207,284.97 from CNY 1,325,812,672.95, representing a growth of about 5.02%[15] - Inventory decreased to CNY 687,939,876.35 from CNY 750,467,820.42, showing a decline of approximately 8.34%[15] - Total liabilities rose to CNY 4,449,093,751.58 from CNY 3,974,744,176.94, reflecting an increase of about 11.93%[16] - Short-term borrowings increased to CNY 2,019,246,247.88 from CNY 1,685,325,275.16, indicating a rise of approximately 19.83%[16] - Non-current assets totaled CNY 3,811,574,859.19, up from CNY 3,692,966,132.76, representing an increase of about 3.21%[16] - The company reported a significant increase in long-term borrowings to CNY 726,449,581.18 from CNY 679,358,246.25, which is an increase of approximately 6.93%[16] - Total liabilities increased to CNY 5,861,437,332.14 in 2025 from CNY 5,272,112,143.45 in 2024, reflecting a growth of 11.1%[18] - Total equity attributable to shareholders decreased to CNY 1,999,519,159.43 in 2025 from CNY 2,101,690,426.07 in 2024, a decline of 4.9%[18] Research and Development - The company experienced a 35.66% reduction in R&D expenses, indicating a decrease in investment in new product development[7] - The company reported a decrease in research and development expenses to CNY 11,172,925.24 in Q1 2025 from CNY 17,366,063.82 in Q1 2024, a reduction of 35.6%[21] Non-Recurring Gains - Non-recurring gains totaled ¥8,887,621.07, primarily due to government subsidies and debt restructuring gains[6] Shareholder Information - The company has no significant changes in the top 10 shareholders or their shareholding status, maintaining stability in ownership structure[12] Other Income - The company recorded a significant increase in other income to CNY 19,377,363.69 in Q1 2025 from CNY 29,473,900.82 in Q1 2024, a decrease of 34.2%[21] Accounting Standards - The company will not apply new accounting standards starting from 2025[26]

一. 重要声明 按照企业内部控制规范体系的规定，建立健全和有效实施内部控制，评价其有效性，并如实披露内 部控制评价报告是公司董事会的责任。监事会对董事会建立和实施内部控制进行监督。经理层负责组织 领导企业内部控制的日常运行。公司董事会、监事会及董事、监事、高级管理人员保证本报告内容不存 在任何虚假记载、误导性陈述或重大遗漏，并对报告内容的真实性、准确性和完整性承担个别及连带法 律责任。 公司内部控制的目标是合理保证经营管理合法合规、资产安全、财务报告及相关信息真实完整，提 高经营效率和效果，促进实现发展战略。由于内部控制存在的固有局限性，故仅能为实现上述目标提供 合理保证。此外，由于情况的变化可能导致内部控制变得不恰当，或对控制政策和程序遵循的程度降低， 根据内部控制评价结果推测未来内部控制的有效性具有一定的风险。 二. 内部控制评价结论 公司代码：603278 公司简称：大业股份 山东大业股份有限公司 2024年度内部控制评价报告 山东大业股份有限公司全体股东： 根据《企业内部控制基本规范》及其配套指引的规定和其他内部控制监管要求（以下简称企业内部 控制规范体系），结合本公司（以下简称公司）内部控制制度和评 ...

证券代码：603278 证券简称：大业股份 公告编号：2025-020 山东大业股份有限公司 关于续聘中兴华会计师事务所（特殊普通合伙）为 公司 2025 年度审计机构及内控审计机构的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或 者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示 公司于2025年4月28日召开第五届董事会第十四次会议，审议通过了《关于 聘任公司2025年度审计机构及内控审计机构的议案》，拟续聘中兴华会计师事务 所（特殊普通合伙）（以下简称：中兴华所）为公司2025年度审计机构及内控审 计机构，并自公司2024年度股东大会批准之日起生效，现将具体情况公告如下： 一、拟聘任会计师事务所的基本情况 （一）机构信息 1.基本信息 中兴华会计师事务所成立于 1993 年，2000 年由国家工商管理总局核准，改 制为"中兴华会计师事务所有限责任公司"。2009 年吸收合并江苏富华会计师事 务所，更名为"中兴华富华会计师事务所有限责任公司"。2013 年公司进行合伙 制转制，转制后的事务所名称为"中兴华会计师事务所（特殊普通合伙）"。注册 地址： ...

关于山东大业股份有限公司 非经营性资金占用及其他关联资金往来情况 汇总表的专项审计报告 目 录 1、 专项审计报告 2、 附表 委托单位：山东大业股份有限公司 审计单位：中兴华会计师事务所 联系电话：010-51423818 中 兴 华 会 计 师 事 务 所 （ 特 殊 普 通 合 伙 ） Z H O N G X I N G H U A C E R T I F I E D P U B L I C A C C O U N T A N T S L L P 地 址 （ l o c a t i o n ）： 北 京 市 丰 台 区 丽 泽 路 2 0 号 丽 泽 S O H O B 座 2 0 层 20/F,Tower B,Lize SOHO,20 Lize Road,Fengtai District,Beijing PR China 电 话 （ t e l ）： 0 1 0 - 5 1 4 2 3 8 1 8 传 真 （ f a x ）： 0 1 0 - 5 1 4 2 3 8 1 6 关于山东大业股份有限公司 2024年度非经营性资金占用及其他关联资金往来 情况汇总表的专项说明 中兴华报字（2025）第 030 ...

证券代码：603278 证券简称：大业股份 公告编号：2025-019 山东大业股份有限公司 关于 2025 年度为子公司及孙公司提供担保额度的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或 者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示 被担保人：公司所属子公司及孙公司（含全资子公司、控股子公司、控 股孙公司、本次担保额度有效期内新设各级子公司），其中部分子公司的资产负 债率超过 70%。 公司拟为子公司及孙公司向银行或非金融机构申请的授信提供不超过 30 亿元人民币的担保额度。截至到 2025 年 4 月 28 日，公司对子公司及孙公司 的担保余额为 80,099.36 万元，占公司最近一期经审计净资产的 38.11%。 一、担保情况概述 为满足业务发展及日常经营资金实际需求，充分拓展子公司及孙公司融资渠 道、增强公司整体融资能力，公司拟为子公司及孙公司（含全资子公司、控股子 公司、控股孙公司、本次担保额度有效期内新设各级子公司）向银行或非金融机 构申请的授信提供不超过 30 亿元人民币的担保额度。有效期自 2024 年年度股东 大会批准该议案 ...

证券代码：603278 证券简称：大业股份 公告编号：2025-021 山东大业股份有限公司（以下简称"公司"）于2025年4月28日召开第五届 董事会第十四次会议和第五届董事会第十次会议，分别审议通过了《关于继续开 展外汇套期保值业务的议案》，该议案尚需提交股东大会审议批准。公司及子公 司拟以自有资金在余额不超过1亿美元（或其他等值外币）交易额度内开展外汇 套期保值业务；公司及子公司计划利用商品期货和期权进行套期保值业务操作， 2025年度公司开展最高保证金金额不超过人民币1亿元的期货套期保值业务。现 将相关事项公告如下： 一、开展外汇和期货套期保值目的 公司在日常经营过程中涉及贸易项下外汇资金收付的外币业务，为有效规避 和防范外汇市场风险，防止汇率大幅波动对公司生产经营造成不利影响。公司将 以真实的业务为基础开展相关外汇套期保值业务，不进行投机和套利交易。 公司主要产品胎圈钢丝、钢帘线、胶管钢丝的主要原材料是盘条，为规避生 产经营中因原材料盘条价格上涨和库存产品价格下跌带来的风险，公司利用商品 期货和期权进行套期保值业务操作。公司套期保值业务使用自有资金进行操作， 仅用于降低主要原材料价格波动等风险，不作 ...

山东大业股份有限公司 2024年度合并及母公司财务报表 审计报告书 中兴华会计师事务所(特殊普通合伙) ZHONGXINGHUA CERTIFIED PUBLIC ACCOUNTANTS LLP 地址：北京市丰台区丽泽路 20 号丽泽 SOHO Ｂ座 20 层 邮编：100073 电话：(010) 51423818 传真：(010) 51423816 目 录 三、审计报告附件 一、审计报告 二、审计报告附送 1. 合并及母公司资产负债表 2. 合并及母公司利润表 3. 合并及母公司现金流量表 4. 合并股东权益变动表 5. 母公司股东权益变动表 6. 财务报表附注 1. 中兴华会计师事务所（特殊普通合伙）营业执照复印件 2. 中兴华会计师事务所（特殊普通合伙）执业证书复印件 3. 注册会计师执业证书复印件 中 兴 华 会 计 师 事 务 所 （ 特 殊 普 通 合 伙 ） Z H O N G X I N G H U A C E R T I F I E D P U B L I C A C C O U N T A N T S L L P 地 址 （ l o c a t i o n ）： 北 京 市 丰 台 区 丽 ...