深圳市建筑科学研究院股份有限公司 简式权益变动报告书 上市公司名称：深圳市建筑科学研究院股份有限公司 股票上市地点：深圳证券交易所 股票简称：建科院 股票代码：300675 信息披露义务人：深圳市建科投资股份有限公司 住所：深圳市福田区梅林街道孖岭社区梅坳三路 29 号建科大楼 1101 通讯地址：深圳市福田区梅林街道孖岭社区梅坳三路 29 号建科大楼 1101 股份变动性质：股份减少，持股比例降至 5%以下 签署日期：2025 年 12 月 8 日 信息披露义务人声明 一、本报告书系依据《中华人民共和国证券法》《上市公司收购管理办法》 《公开发行证券的公司信息披露内容与格式准则第 15 号——权益变动报告书》 及相关法律、法规和规范性文件编写。 四、本次权益变动是根据本报告书所载明的资料进行的。除本信息披露义 务人外，没有委托或者授权其它任何人提供未在本报告书列载的信息和对本报告 书做出任何解释或者说明。 五、信息披露义务人承诺：本报告书不存在虚假记载、误导性陈述或重大 遗漏，并对其真实性、准确性和完整性承担法律责任。 | | | | 第二节 | 信息披露义务人介绍 3 | | --- | --- | | ...

（文章来源：证券日报） 证券日报网讯 12月1日，建科院在互动平台回答投资者提问时表示，截至2025年11月28日，公司股东户 数为15，633户（含信用账户）。 ...

Market Overview - The engineering consulting services sector experienced a decline of 0.67% on November 27, with 招标股份 leading the drop [1] - The Shanghai Composite Index closed at 3875.26, up 0.29%, while the Shenzhen Component Index closed at 12875.19, down 0.25% [1] Stock Performance - Notable gainers in the engineering consulting services sector included 启迪设计, which rose by 6.39% to a closing price of 17.16, with a trading volume of 245,000 shares and a turnover of 400 million yuan [1] - Other gainers included 矩阵股份 (+2.52%), 示州规划 (+2.11%), and 太极实业 (+1.80%) [1] - Conversely, 招标股份 saw a significant decline of 11.60%, closing at 15.39, with a trading volume of 424,400 shares and a turnover of 662 million yuan [2] Capital Flow - The engineering consulting services sector experienced a net outflow of 10.33 million yuan from institutional investors, while retail investors saw a net outflow of 34.24 million yuan [2] - In contrast, speculative funds recorded a net inflow of 44.57 million yuan [2] Individual Stock Capital Flow - 太极实业 had a net outflow of 59.28 million yuan from institutional investors, while 启迪设计 saw a net inflow of 42.18 million yuan [3] - Other stocks like 深城交 and 汉嘉设计 also experienced varying degrees of net inflow and outflow from different investor categories [3]

Core Viewpoint - The news highlights the recent performance and financial status of Shenzhen Institute of Building Research Co., Ltd. (建科院), indicating a mixed outlook with a notable decline in revenue and profit, alongside fluctuations in stock price and shareholder dynamics [1][2]. Financial Performance - As of November 10, 2025, the company reported a revenue of 171 million yuan, representing a year-on-year decrease of 31.35% [2]. - The net profit attributable to shareholders was -69.91 million yuan, reflecting a significant decline of 102.73% compared to the previous year [2]. - Cumulative cash dividends since the company's A-share listing amount to 91.67 million yuan, with 23.47 million yuan distributed over the past three years [3]. Stock Performance - On November 20, the stock price increased by 2.19%, reaching 17.24 yuan per share, with a trading volume of 51.43 million yuan and a turnover rate of 2.06% [1]. - Year-to-date, the stock has risen by 7.01%, but it has seen a decline of 0.52% over the last five trading days and a more significant drop of 16.88% over the past 20 days [1]. Shareholder Dynamics - The number of shareholders decreased by 7.44% to 17,500 as of November 10, 2025, while the average number of circulating shares per person increased by 8.04% to 8,396 shares [2]. - As of September 30, 2025, notable institutional holdings include Noan Multi-Strategy Mixed A, which increased its stake by 356,100 shares, and CITIC Prudential Multi-Strategy Mixed A, which entered as a new shareholder with 588,200 shares [3]. Business Overview - The company, established on August 20, 2007, and listed on July 19, 2017, operates in various sectors including building design, green building consulting, ecological urban planning, and public service [1]. - The revenue composition is as follows: public service (41.30%), building design (25.86%), urban planning (21.82%), building consulting (6.06%), other (3.46%), and EPC and project management (1.50%) [1].

Core Viewpoint - The stock of Shenzhen Institute of Building Research Co., Ltd. (建科院) has shown a positive trend with a year-to-date increase of 9.75% and a recent uptick of 2.02% on November 14, 2023, despite a significant decline in revenue and net profit for the first nine months of 2025 [1][2]. Financial Performance - As of November 10, 2025, the company reported a revenue of 171 million yuan, a year-on-year decrease of 31.35%, and a net profit attributable to shareholders of -69.91 million yuan, reflecting a decline of 102.73% [2]. - Cumulative cash dividends since the company's A-share listing amount to 91.67 million yuan, with 23.47 million yuan distributed over the past three years [3]. Stock Market Activity - On November 14, 2023, the stock price reached 17.68 yuan per share, with a trading volume of 60.44 million yuan and a turnover rate of 2.36%, resulting in a total market capitalization of 2.593 billion yuan [1]. - The stock has experienced a 2.85% increase over the last five trading days and a 10.36% increase over the last 20 days [1]. Shareholder Information - The number of shareholders decreased by 7.44% to 17,500 as of November 10, 2025, while the average number of circulating shares per person increased by 8.04% to 8,396 shares [2]. - Notable institutional holdings include Nuoan Multi-Strategy Mixed A (320016) as the fifth largest shareholder, increasing its stake by 356,100 shares, and CITIC Prudential Multi-Strategy Mixed (LOF) A (165531) entering as the tenth largest shareholder with 588,200 shares [3]. Business Overview - Shenzhen Institute of Building Research Co., Ltd. was established on August 20, 2007, and went public on July 19, 2017. Its main business areas include architectural design, green building consulting, ecological urban planning, and public service [1]. - The revenue composition of the company is as follows: public service (41.30%), architectural design (25.86%), urban planning (21.82%), building consulting (6.06%), other (3.46%), and EPC and project management (1.50%) [1].

Summary of Key Points Core Viewpoint - Suzhou Jian Ke Institute announced a share reduction plan by major shareholders, indicating potential changes in ownership structure and investor sentiment [1] Shareholder Reduction Plans - Major shareholder and director Wu Qichao plans to reduce holdings by up to 4.95 million shares, representing 0.9957% of total share capital [1] - Shareholder and supervisor Chu Ying intends to reduce holdings by up to 36,000 shares, accounting for 0.0072% of total share capital [1] Current Shareholding Status - As of November 13, Wu Qichao has reduced his holdings by 269,500 shares, which is 0.0542% of total share capital, leaving him with 5.0804% ownership [1] - Chu Ying has reduced his holdings by 36,000 shares, maintaining a current ownership of 0.0279% [1]

Core Insights - The engineering consulting services sector saw a slight increase of 0.12% on November 13, with Hualan Group leading the gains [1] - The Shanghai Composite Index closed at 4029.5, up 0.73%, while the Shenzhen Component Index closed at 13476.52, up 1.78% [1] Stock Performance - Hualan Group (301027) closed at 19.85, with a rise of 8.59% and a trading volume of 228,700 shares, amounting to a transaction value of 444 million yuan [1] - Other notable performers included: - Zhaobiao Co. (301136) at 14.22, up 3.80% [1] - Huayang International (002949) at 14.93, up 1.91% [1] - Youan Design (300983) at 24.95, up 1.51% [1] Capital Flow - The engineering consulting services sector experienced a net outflow of 209 million yuan from institutional investors, while retail investors saw a net inflow of 168 million yuan [2] - The sector's overall capital flow indicates a mixed sentiment, with institutional investors withdrawing funds while retail investors increased their positions [2][3] Individual Stock Capital Flow - Notable net inflows from retail investors included: - Shanshui Bide (300844) with a retail net inflow of 1.17 million yuan [3] - Tongji Technology (600846) with a retail net inflow of 731,830 yuan [3] - Conversely, significant net outflows from institutional investors were observed in: - Huatu Shanding (300492) with a net outflow of 1.43 million yuan [3] - Jianyan Design (301167) with a net outflow of 459,910 yuan [3]

Core Viewpoint - The company, Jian Ke Yuan, has clarified that its accounts receivable primarily come from government, public institutions, and state-owned enterprises, indicating a strong credit profile and payment capability of its clients [1] Group 1 - The company's accounts receivable can cover both short-term and long-term borrowings [1] - The main clients for the company's receivables are concentrated in key business areas, which enhances the reliability of payment [1] - The clients are characterized by strong credibility and good payment ability [1]

Core Viewpoint - The company reported a significant decrease in shareholder accounts and a substantial decline in both revenue and net profit for the third quarter, indicating potential challenges ahead [2] Group 1: Shareholder Information - As of November 10, the number of shareholders for the company was 17,467, a decrease of 1,404 from the previous period (October 31), representing a decline of 7.44% [2] - The latest stock price of the company is 17.83 yuan, remaining flat, with a cumulative increase of 3.84% since the concentration of shares began [2] Group 2: Financial Performance - For the first three quarters, the company achieved a total operating revenue of 171 million yuan, a year-on-year decrease of 31.92% [2] - The net profit for the same period was -69.91 million yuan, reflecting a year-on-year decline of 100.90% [2] - The basic earnings per share were reported at -0.4766 yuan [2]

Group 1 - The core point of the news is the performance of Shenzhen Institute of Building Research Co., Ltd. (建科院), which saw a stock price increase of 5.15% to 17.98 CNY per share, with a trading volume of 145 million CNY and a turnover rate of 5.60%, resulting in a total market capitalization of 2.637 billion CNY [1] - The company was established on August 20, 2007, and listed on July 19, 2017. Its main business areas include architectural design, green building consulting, ecological urban planning, and public trust services [1] - The revenue composition of the company is as follows: public trust services 41.30%, architectural design 25.86%, urban planning 21.82%, building consulting 6.06%, other 3.46%, and EPC and project management 1.50% [1] Group 2 - From the perspective of the top ten circulating shareholders, a fund under Nuoan Fund holds a significant position in the company. Nuoan Multi-Strategy Mixed A (320016) increased its holdings by 356,100 shares in the third quarter, bringing its total to 1,041,100 shares, which accounts for 0.71% of the circulating shares [2] - The estimated floating profit for Nuoan Multi-Strategy Mixed A today is approximately 916,200 CNY. The fund was established on August 9, 2011, and has a current scale of 1.855 billion CNY. Year-to-date returns are 74.25%, ranking 247 out of 8,147 in its category [2] - The fund manager of Nuoan Multi-Strategy Mixed A is Kong Xianzheng, who has been in the position for 4 years and 351 days. The total asset scale under his management is 5.608 billion CNY, with the best fund return during his tenure being 89.04% and the worst being -16.74% [3]