2023 年半年度，公司控股股东及其他关联方不存在占用公司资金的情况； 公司累计和当期没有发生对外担保事项。公司能够认真贯彻执行有关规定，严格 控制关联方占用资金和对外担保风险。（以下无正文） 山东同大海岛新材料股份有限公司 独立董事关于相关事项的独立意见 根据《上市公司独立董事规则》《深圳证券交易所上市公司自律监管指引第 2 号——创业板上市公司规范运作》和《山东同大海岛新材料股份有限公司章程》 等有关规定，我们作为山东同大海岛新材料股份有限公司（以下简称"公司"） 第六届董事会的独立董事，按照实事求是的原则，基于独立判断的立场，对公司 控股股东及其他关联方占用公司资金、公司对外担保情况发表独立意见如下: 独立董事签名： 陈国柱 冯琳珺 王 京 2023 年 8 月 18 日 （本页无正文，为山东同大海岛新材料股份有限公司独立董事关于相关事项 的独立意见之签署页） ...

山东同大海岛新材料股份有限公司 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、误导性陈述或重大遗漏。 山东同大海岛新材料股份有限公司（以下简称"公司"）第六届董事会第三 次会议于 2023 年 8 月 18 日在公司会议室以现场与通讯相结合方式召开，会议通 知以通讯方式于 2023 年 8 月 8 日发出。会议应到董事 9 人，实到董事 9 人，公 司监事和高管均列席了会议。本次会议由董事长张振江先生主持，会议的召集、 召开符合有关法律、行政法规、部门规章、规范性文件和公司章程的规定。 经与会董事讨论审议，本次会议形成如下决议： 证券代码：300321 证券简称：同大股份 公告编号：2023-035 山东同大海岛新材料股份有限公司 第六届董事会第三次会议决议公告 董事会 2023 年 8 月 18 日 审议通过《关于公司<2023 年半年度报告>及摘要的议案》 公司《2023 年半年度报告》及摘要的编制和审核符合法律法规和相关制度 的有关规定，报告内容真实、准确、完整的反映了上市公司的财务状况、经营成 果，不存在虚假记载、误导性陈述或重大遗漏。 《2023 年半年度报告》及摘要于 ...

法定代表人：张振江 主管会计工作负责人：李艳霞 会计机构负责人：胡青 山东同大海岛新材料股份有限公司 2023 年半年度非经营性资金占用及其他关联资金往来情况汇总表 编制单位：山东同大海岛新材料股份有限公司 单位：元 | 非经营性资 | 资金占用方 | 占用方与上市公 | 上市公司核算 | 2023 年期初占 | 2023 年 1-6 月占用累 | 2023 年 1-6 月占 | 2023 | 年 1-6 月 | 2023 年半年度 | 占用形成 | 占用性 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 金占用 | 名称 | 司的关联关系 | 的会计科目 | 用资金余额 | 计发生金额（不含利 | 用资金的利息 | 偿还累计发生 | | 期末占用资金 | 原因 | 质 | | | | | | | 息） | （如有） | 金额 | | 余额 | | | | 现大股东及 | 无 | | | | | | | | | | | | 其附属企业 | | | | | | | | | | | | | 小计 | | - ...

2022 年 8 月 15 日，公司使用 1000 万元购买了中泰证券股份有限公司的理 财产品"中泰证券股份有限公司收益凭证'臻选'第 120 期"，具体内容详见公 司在巨潮资讯网披露的《关于使用部分闲置自有资金购买理财产品的公告》(公 告编号：2022-030)。 截至本公告日，上述理财产品本金及利息 10,010,000.00 元已全部收回。 特此公告。 证券代码：300321 证券简称：同大股份 公告编号：2023-034 山东同大海岛新材料股份有限公司 关于使用部分闲置自有资金购买理财产品到期赎回的公告 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、误导性陈述或重大遗漏。 山东同大海岛新材料股份有限公司（以下简称"公司"）于 2022 年 5 月 24 日 召开的 2021 年年度股东大会审议通过了《关于以闲置自有资金购买理财产品的 议案》。为提高资金使用效率，增加利息收入，根据公司经营计划和资金使用情 况，在保证资金流动性和安全性的基础上，使用不超过 1 亿元人民币的暂时闲置 流动资金进行委托理财，用于购买短期中低风险或稳健型理财产品，自股东大会 审议通过之日起一年内滚动 ...

证券代码：300321 证券简称：同大股份 公告编号：2023-033 截至目前，华盛百利集中竞价方式减持股份计划的时间已届满，根据中国证 监会、深圳证券交易所相关法规的规定，现将有关股份减持计划的实施进展情况 公告如下： 一、 股东减持股份情况 | 股东名称 | 减持方式 | 减持期间 | 减持均价 | 减持股数（万股） | 减持比例（%） | | --- | --- | --- | --- | --- | --- | | 华盛百利 | 集中竞价交易 | - | - | 0 | 0 | | | 大宗交易 | - | - | 0 | 0 | | | 其他方式 | - | - | 0 | 0 | | | 合计 | - | - | 0 | 0 | 山东同大海岛新材料股份有限公司 关于股东集中竞价减持计划时间届满的公告 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、误导性陈述或重大遗漏。 山东同大海岛新材料股份有限公司（以下简称"公司"）于 2023 年 1 月 17 日披露了《关于持股 5%以上股东减持计划预披露的公告》（公告编号：2023-003）。 股东华盛百利投资发展（北京）有限 ...

Financial Performance - The company's operating revenue for Q1 2023 was ¥73,698,000.47, a decrease of 41.81% compared to ¥126,661,504.23 in the same period last year[4] - The net profit attributable to shareholders was a loss of ¥10,668,635.57, representing a decline of 647.72% from a profit of ¥1,947,817.70 in the previous year[4] - Basic and diluted earnings per share were both -¥0.1201, a decrease of 648.40% from ¥0.0219 in the previous year[4] - The net profit for Q1 2023 was a loss of ¥10,668,635.57, compared to a profit of ¥1,947,817.70 in Q1 2022, indicating a significant decline[18] Assets and Equity - Total assets at the end of the reporting period were ¥679,939,177.40, down 1.18% from ¥688,041,432.05 at the end of the previous year[4] - The company's equity attributable to shareholders decreased by 1.70%, from ¥629,176,936.17 to ¥618,508,300.60[4] - The company's total assets decreased to ¥679,939,177.40 from ¥688,041,432.05, a reduction of 1.5%[15] - The total equity attributable to shareholders decreased to ¥618,508,300.60 from ¥629,176,936.17, a decline of 1.1%[15] Cash Flow - The net cash flow from operating activities improved by 89.63%, with a net outflow of ¥5,051,286.64 compared to an outflow of ¥48,692,958.02 in the same period last year[4] - The cash inflow from operating activities for Q1 2023 was CNY 51,302,988.59, a decrease of 50.0% compared to CNY 102,615,219.22 in the previous period[20] - The cash outflow from operating activities totaled CNY 56,354,275.23, down from CNY 151,308,177.24, resulting in a net cash flow from operating activities of CNY -5,051,286.64[20] - The cash and cash equivalents at the end of the period increased to CNY 165,331,198.33 from CNY 110,519,451.30, marking a significant recovery[21] Expenses - Total operating costs for Q1 2023 were ¥84,841,752.64, down from ¥123,498,678.23, reflecting a reduction of 31.3%[17] - Sales expenses increased by 50.84% year-on-year, primarily due to higher promotional costs[10] - Financial expenses rose by 135.52% compared to the previous year, mainly due to fluctuations in the USD exchange rate[10] - Research and development expenses for Q1 2023 were ¥3,729,182.04, down from ¥4,425,568.52, a decrease of 15.7%[17] Income - The company reported a 100% increase in non-operating income compared to the previous year, attributed to higher non-production-related income[10] - The company reported a significant increase in interest income to ¥987,485.98 from ¥725,174.44, an increase of 36.2%[18] Shareholder Information - The number of ordinary shareholders at the end of the reporting period was 5,840[10]

Financial Performance - The company's operating revenue for 2022 was ¥464,370,707.88, a decrease of 10.71% compared to ¥520,065,387.98 in 2021[17] - Net profit attributable to shareholders increased by 258.89% to ¥11,386,429.17 from ¥3,172,674.07 in the previous year[17] - The net profit after deducting non-recurring gains and losses was ¥7,645,070.42, a significant increase of 1,359.29% compared to a loss of ¥607,093.81 in 2021[17] - The basic earnings per share rose to ¥0.1282, reflecting a 259.10% increase from ¥0.0357 in 2021[17] - The company's main business revenue for 2022 was ¥442,975,024.10, a decrease of 10.51% compared to ¥494,979,113.06 in 2021[42] - The total revenue for the year 2022 was 201,453,351.65 CNY for synthetic leather, representing a 29.78% increase compared to the previous year[50] - The gross profit margin for synthetic leather products was 13.05%, showing a slight increase of 0.10% year-over-year[50] - The sales volume for synthetic leather manufacturing decreased by 20.71% to 1,256.48 million square meters in 2022 compared to 2021[51] Assets and Cash Flow - The total assets at the end of 2022 were ¥688,041,432.05, down 6.41% from ¥735,147,069.27 at the end of 2021[17] - The company's cash flow from operating activities showed a net outflow of ¥2,133,351.90, a decline of 104.64% compared to a positive cash flow of ¥45,977,409.74 in 2021[17] - The company's net cash flow from operating activities was -¥2,133,351.90 in 2022, a decline of 104.64% compared to ¥45,977,409.74 in 2021, primarily due to decreased revenue and increased operating expenses[61] - Investment activities generated a net cash flow of -¥44,816,336.84 in 2022, a significant drop of 235.26% from ¥33,134,505.53 in 2021, mainly due to increased investment in financial products[61] - Total cash and cash equivalents decreased by ¥48,693,133.30 in 2022, a decline of 180.60% compared to an increase of ¥60,416,266.67 in 2021[61] Research and Development - The company’s R&D expenses for 2022 were ¥17,454,885.59, a slight increase of 1.45% from ¥17,204,807.00 in 2021[42] - R&D investment amounted to ¥17,454,885.59 in 2022, representing 3.76% of operating revenue, an increase from 3.31% in 2021[58] - The number of R&D personnel decreased by 3.16% to 92 in 2022, with a proportion of 15.54% of total employees[58] - The company completed the development of various new synthetic leather products, enhancing competitiveness and environmental sustainability[57] - The company aims to achieve a 25% bio-based content in its low-carbon footprint synthetic leather, aligning with "dual carbon" policies[58] - The company has made significant progress in developing antibacterial and antiviral synthetic leather, enhancing its innovation capabilities[57] Market and Product Development - The company aims to become a leading global supplier of ultra-fine fiber products, with a focus on ecological and high-performance materials[32] - The market for ultra-fine fiber synthetic leather is expanding, driven by increasing demand for eco-friendly materials and advanced processing techniques[28] - The company has established several research and technology centers, enhancing its capabilities in product innovation and development[32] - The company’s products are widely used in various industries, including footwear, automotive interiors, and sports equipment, with notable clients such as LV, ZARA, and BMW[36] - The company plans to enhance product differentiation and expand its product series to meet diverse customer needs, focusing on new materials and technologies[73][75] Governance and Compliance - The company held 2 shareholder meetings, 4 board meetings, and 3 supervisory meetings during the reporting period, ensuring compliance with governance regulations[90] - The board of directors consists of 9 members, including 3 independent directors, ensuring a diverse and qualified governance structure[91] - The company has established a robust information disclosure system, ensuring timely and accurate communication with investors[95] - The company maintains independence from its controlling shareholder in terms of operations, assets, and finances, ensuring a self-sufficient business model[98] - The company has established an independent governance structure, including a shareholder meeting, board of directors, and supervisory board, adhering to legal regulations[101] Shareholder Returns - The company plans to implement a shareholder return plan for the next three years (2022-2024)[117] - The company implemented a cash dividend policy, distributing a total of 3,108,000 CNY (including tax) based on a base of 88,800,000 shares, with a dividend of 0.35 CNY per 10 shares[131] - The net profit for the year was 11,386,429.17 CNY, with a legal surplus reserve of 1,138,642.92 CNY, representing a 10% extraction rate[131] - The total distributable profit at the end of the year was 10,247,786.25 CNY, with retained earnings amounting to 259,195,852.72 CNY[131] - The company ensured that the cash dividend distribution plan complied with the Company Law and the Articles of Association, protecting the interests of all shareholders, especially minority shareholders[132] Risk Management - The company faces risks related to accounts receivable, with a significant balance that could be affected by changes in the macroeconomic environment[79] - The company is exposed to raw material price fluctuation risks, particularly due to the impact of international oil prices on key materials like polyethylene and nylon[82] - The company has a significant export business, accounting for nearly 40% of its operations, making it sensitive to fluctuations in the RMB exchange rate[83] - The company has established a comprehensive inventory management mechanism to monitor stock status and reduce inventory impairment risks[81] Employee Management - The total number of employees at the end of the reporting period is 592, with 397 in production, 21 in sales, 92 in technical roles, 8 in finance, and 74 in administration[124] - The educational background of employees includes 57 with a bachelor's degree or higher, 104 with a college diploma, 102 with a high school diploma, and 329 with vocational or lower education[125] - The company emphasizes a competitive salary policy based on efficiency and performance, ensuring that employee compensation is aligned with market standards[126] - Training programs are tailored to employee needs and company development goals, including various types of training such as onboarding, professional knowledge, management skills, and specialized skills[127] Audit and Financial Reporting - The audit report issued a standard unqualified opinion, indicating that the financial statements fairly reflect the company's financial position as of December 31, 2022[193] - The internal control system was evaluated as effective in maintaining financial reporting integrity, with no significant defects reported[136] - The internal control audit report confirmed that the company maintained effective financial reporting internal controls as of December 31, 2022[136] - The management is responsible for the accuracy of the financial statements and related disclosures[198] - The audit opinion does not cover other information outside the financial statements and audit report[199]

证券代码：300321 证券简称：同大股份 公告编号：2023-018 山东同大海岛新材料股份有限公司 关于举行 2022 年度网上业绩说明会的公告 出席本次业绩说明会的人员有：公司董事长张振江先生、总经理徐旭日先生、 财务总监李艳霞女士、独立董事王京先生、董事会秘书张莎女士。 为充分尊重投资者、提升交流的针对性，现就公司 2022 年度业绩说明会提 前向投资者公开征集问题，广泛听取投资者的意见和建议。公司欢迎广大投资者 于2023年4月27日（星期四）15:00前，将关注的问题通过http://ir.p5w.net/zj 界面的提问通道进行提问，或扫描下方二维码，进入问题征集专题页面提问。 公司将在 2022 年度业绩说明会上，对投资者普遍关注的问题进行回答。敬 请广大投资者积极参与！ 特此公告。 山东同大海岛新材料股份有限公司 董事会 2023 年 4 月 21 日 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、 误导性陈述或重大遗漏。 山东同大海岛新材料股份有限公司（以下简称"公司"）《2022 年年度报 告及摘要》于 2023 年 4 月 22 日披露于巨潮资讯网（http: ...

Group 1: Company Development and Strategy - The company plans to enhance product technology and added value based on market demand for high-quality and sustainable development [1] - Future growth points will focus on strengthening R&D efforts, particularly in environmental and recyclable technologies [1] Group 2: Supplier and Material Management - The company maintains stable quality from long-term suppliers, ensuring that raw materials meet R&D and production needs [1] - The impact of raw material price increases has been acknowledged, with measures in place to mitigate risks [3] Group 3: Financial Performance and Market Conditions - The company has experienced some impact from the pandemic, but production and operations remain normal [2] - The company’s cash flow is currently stable, adhering to accounting standards [4] - The stock price is influenced by various factors including economic environment and market conditions [3] Group 4: Operational Capacity and Market Position - The current capacity utilization rate is at a reasonable level [3] - The company holds a significant market share in the domestic mid-to-high-end market for eco-friendly synthetic leather [3]