截至2025年8月26日收盘，正海生物股价报22.23元，较前一交易日下跌0.22元，跌幅0.98%。当日成交 量为33418手，成交额0.75亿元，换手率1.86%。 正海生物属于医疗器械板块，主营业务为生物再生材料的研发、生产与销售，产品涵盖口腔修复膜、生 物膜等医用材料。 风险提示：市场有风险，投资需谨慎。 公司8月26日在互动平台表示，其钙硅生物陶瓷骨修复材料属于非动物源人工合成骨修复材料，未来上 市后将按13%税率征收增值税。同时，公司明确表示暂无开发非动物源性脑膜系列产品的计划。此外， 正海生物将于8月27日召开临时股东大会，审议变更经营范围、修订公司章程等多项议案。 资金方面，8月26日主力资金净流出242.05万元，近五日累计净流出2199.57万元。 ...

正海生物8月26日在互动平台表示，公司钙硅生物陶瓷骨修复材料属于非动物源人工合成骨修复材料， 产品未来上市销售后需按照13%的税率征收增值税。公司当前暂无开发非动物源性脑膜系列产品的计 划。 ...

格隆汇8月26日|正海生物(300653.SZ)在投资者互动平台表示，公司钙硅生物陶瓷骨修复材料属于非动物 源人工合成骨修复材料，产品未来上市销售后需按照13%的税率征收增值税。公司当前暂无开发非动物 源性脑膜系列产品的计划。 ...

Group 1: Company Performance Overview - In the first half of 2025, the company achieved total revenue of 187 million yuan, a decrease of 5.14% compared to the same period last year [3] - Net profit attributable to shareholders was 46.49 million yuan, down 45.97% year-on-year [3] - Earnings per share were 0.26 yuan, reflecting a decline of 45.83% compared to the previous year [3] Group 2: Key Product Performance - The main revenue sources were oral repair membranes and meningeal series products, with meningeal products generating sales of 80.27 million yuan [3] - Oral repair membranes achieved sales of 77.12 million yuan despite increased competition and demand fluctuations [3] - New product active biological bone showed steady growth, with hospital admissions meeting targets and sales gradually increasing [3][4] Group 3: Future Product Development - The new oral repair membrane product has received certification, and calcium silicate biological ceramic bone repair materials are in the registration phase, expected to enhance the company's product portfolio [4] - Other pipeline products, including uterine repair membranes and breast patches, are in the registration and data management stages, anticipated to contribute to revenue in the next 2-3 years [4] Group 4: Market Challenges and Strategies - The decline in revenue was primarily due to decreased income from the oral sector, driven by weak demand in the implant market and intensified competition [6] - The company plans to continue focusing on its strengths and developing new products to achieve stable revenue growth [6] - The impact of centralized procurement on meningeal product pricing has led to a decrease in prices but an increase in sales volume [7] Group 5: International Expansion Plans - The company is exploring the potential for some products to enter international markets and is currently planning related activities [7]

Group 1: Financial Performance - The company's sales revenue in Q1 2025 showed positive growth driven by both existing and new products [4] - In Q1 2025, net profit continued to decline significantly, with sales expenses increasing compared to the same period last year [4] - The overall sales volume has been growing over the years, with a 9.21% growth expected in 2024 despite a severe slowdown in 2023 [5] Group 2: Market Challenges - The decline in revenue and profit in 2024 was influenced by multiple factors, including price optimization of oral products and market demand fluctuations [5] - The company faced challenges with the active biological bone product due to limited sales scale and market conditions [5] - The first quarter of 2025 recorded the lowest gross and net profit since the company went public, indicating a potential ongoing trend [5] Group 3: Product Development and Strategy - The company is focusing on enhancing market promotion for active biological bone products and implementing precise marketing strategies in the oral field [4] - There are plans to expand the indications for active biological bone and to conduct comparative experiments with autologous bone [6] - The company is actively working on the registration and market introduction of new products, including calcium-silicon biological ceramics [10] Group 4: Investor Relations and Future Outlook - The company is committed to improving sales volume and achieving sustainable development despite current challenges [5] - There is an ongoing effort to enhance brand recognition and market coverage for active biological bone products [8] - The company is planning to disclose its profit distribution plan and net profit targets for 2025 in future announcements [30]

Core Viewpoint - Zhenghai Biological's 2024 annual report reveals significant challenges, with a notable decline in both revenue and profit due to centralized procurement policies impacting key products [1][2]. Financial Performance - The company achieved an annual revenue of 363 million yuan, a year-on-year decrease of 12.19% [1]. - The net profit attributable to shareholders was 135 million yuan, down 29.49% year-on-year [1]. - The net profit after deducting non-recurring items was 113 million yuan, with a decline of 32.59%, marking the largest drop in five years [1]. - Quarterly performance showed a 17.83% decline in Q1 revenue, a reduced decline of 6.1% in Q2, and overall improvement in the second half, but not enough to reverse the annual downturn [1]. Impact of Centralized Procurement Policy - Centralized procurement policies have significantly affected the company's core products: oral repair membranes (48.3% of revenue) and absorbable dura mater patches (35.2% of revenue) [1]. - The price drop for dura mater patches reached 83.46% due to a six-province alliance, severely impacting revenue [1]. - The oral repair membrane's gross margin decreased by 2.73 percentage points, contributing to the decline in net profit [1][2]. Cost Control and Profitability - Despite revenue pressures, the company maintained a gross margin above 86%, with a slight year-on-year decrease of 3.96 percentage points [2]. - The net profit margin was 43.45%, still above the industry average, despite an 11.2% year-on-year decline [2]. - The company successfully mitigated some impacts of price reductions through supply chain optimization, showcasing strong cost control capabilities [2][4]. Cash Flow and Shareholder Returns - Operating cash flow net amount decreased by 7.77% year-on-year but remained positive, supporting dividend payments [2]. - Cumulative dividends since the company's listing reached 536 million yuan, with a dividend financing ratio of 2.29, indicating a strong commitment to shareholder returns [2]. Innovation and New Product Development - The company has been overly reliant on traditional products, with R&D expenses not significantly increasing as a percentage of revenue [3]. - New products like "Haiyu" active biological bone, which is the first domestic bone filling material containing rhBMP-2, represent a key opportunity for growth [3][4]. - The successful launch of "Haiyu" and ongoing projects like calcium silicate biological ceramic bone repair materials and breast patches could provide new revenue streams [3][4]. Strategic Adjustments - The company is adjusting its market strategy in response to centralized procurement pressures, including optimizing the supply chain and reducing sales expenses [4]. - The potential expansion of centralized procurement for oral repair membranes and dura mater patches in 2025 indicates ongoing pricing pressures [5]. - Despite a stock price decline of over 50% since 2023, the company announced a share buyback plan of 25 to 50 million yuan, reflecting management's confidence in long-term value [5].