Group 1 - The company China Antibody-B (03681.HK) announced the completion of the subscription of a total of 24,965,400 shares according to the terms and conditions of the relevant subscription agreements with subscribers H and O on August 29, 2025 [1]

Group 1 - The company China Antibody-B (03681) has completed the issuance of 24.9654 million subscription shares as of August 29, 2025 [1] - The subscription price for each share was set at HKD 2.03 [1]

FF305 翌日披露報表 (股份發行人 ── 已發行股份或庫存股份變動、股份購回及/或在場内出售庫存股份) 如上市發行人的已發行股份或庫存股份出現變動而須根據《香港聯合交易所有限公司（「香港聯交所」）證券上市規則》(「《主板上市規則》」)第13.25A條 / 《香港聯合交易所有限公司GEM證券 上市規則》(「《GEM上市規則》」)第17.27A條作出披露，必須填妥第一章節 。 | 第一章節 | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1. 股份分類 | 普通股 | 股份類別 | 不適用 | | 於香港聯交所上市 | 是 | | | | 證券代號 (如上市) | 03681 | 說明 | 普通股 | | | | | | | A. 已發行股份或庫存股份變動 | | | | | | | | | | | | | 已發行股份（不包括庫存股份）變動 | | 庫存股份變動 | | | | | 事件 | | 已發行股份（不包括庫存股份）數 目 | 佔有關事件前的現有已發 行股份（不包括庫存股 份）數目百分比 (註3) ...

香 港 交 易 及 結 算 所 有 限 公 司 及 香 港 聯 合 交 易 所 有 限 公 司 對 本 公 告 的 內 容 概 不 負 責，對其準確性或完整性亦不發表任何聲明，並明確表示，概不對因本公告全部 或任何部份內容而產生或因倚賴該等內容而引致的任何損失承擔任何責任。 下表說明(i)緊接餘下認購事項完成前；及(ii)緊隨餘下認購事項完成後本公司的股 權架構： SinoMab BioScience Limited 中 國 抗 體 製 藥 有 限 公 司 （於香港註冊成立的有限公司） （股份代號：3681） 完成根據一般授權認購新股份 董 事 會 欣 然 宣 佈 ， (i) 本 公 司 與 認 購 人 H 及 (ii) 本 公 司 與 認 購 人 O 有 關 認 購 合 共 24,965,400股認購股份的認購事項已根據各相關認購協議的條款及條件於二零二 五年八月二十九日完成。 緒言 茲提述中國抗體製藥有限公司（「本公司」）日期為二零二五年七月二十二日及二零 二五年八月十五日的公告（ 統稱「該等公告」），內容有關（ 其中包括 ）根據一般授權 認購本公司新股份及完成若干認購事項。除另有所指外，本公告所用詞彙與 ...

Group 1 - The Hong Kong biotechnology stocks experienced a collective decline, with notable drops in several companies [1] - WuXi AppTec (02126) saw a decrease of 12.95%, closing at 4.840 [2] - BioNTech (06952) fell by 12.53%, with a latest price of 13.750 [2] Group 2 - Other companies such as Valiant (09887) and Beihai Kangcheng (01228) also reported significant declines of 9.93% and 9.75% respectively [2] - The decline extended to companies like Saint Noble (02257) and MIRXES (02629), which dropped by 9.64% and 8.43% [2] - Overall, the biotechnology sector is facing downward pressure, impacting multiple firms [1]

Core Viewpoint - CITIC Securities recently initiated coverage on China Antibody (03681.HK) with a "Buy" rating and a target price of HKD 7.43, indicating approximately 150% upside potential from the closing price on August 20 [1] Group 1: Company Overview - The company has strong R&D capabilities in innovative therapies for immune diseases, with core pipelines advancing, particularly SM17, which has shown promising early clinical data in atopic dermatitis (AD) [1][4] - A strategic partnership with the Hong Kong Advanced Institute of Science and Technology at Sun Yat-sen University aims to enhance research capabilities and clinical translation speed [1][4] Group 2: Product Pipeline - SM17 is highlighted as the first global antibody targeting the IL-25 receptor, showing a 75% EASI75 response rate in its Phase Ib clinical trial, which is significantly higher than competitors [2][7] - Other core products, including SM03, SM06, and SN1011, target various autoimmune conditions, showcasing the company's diverse innovation capabilities [4][5] Group 3: Financial Projections - CITIC Securities projects revenues for China Antibody to reach HKD 0.04 billion, HKD 0.08 billion, and HKD 0.16 billion from 2025 to 2027, with a reasonable market capitalization estimated at HKD 10.1 billion [8] Group 4: Market Position and Future Outlook - The strategic collaboration with the Hong Kong Advanced Institute is expected to enrich R&D resources and technical support, accelerating clinical translation and enhancing the commercial prospects of the pipeline [8] - The "Buy" rating and target price from CITIC Securities are anticipated to boost market attention and investor confidence, positioning China Antibody as a potential leader in innovative therapies for immune and inflammatory diseases [8]

Group 1 - The majority of Hong Kong biotech stocks experienced declines, with notable drops in several companies [1] - Specifically, Gilead Sciences fell by 15.06%, while Yunkang Group and Pigeon BioPharma dropped over 14% and 9% respectively [2] - Other companies such as China Antibody and Jiahua Bio also saw declines exceeding 7% [1][2] Group 2 - The latest market prices and total market capitalizations for the affected companies include: - Gilead Sciences at 15.510 with a market cap of 14.946 billion - Yunkang Group at 2.300 with a market cap of 1.429 billion - Pigeon BioPharma at 31.760 with a market cap of 12.258 billion - Tengsheng BioPharma at 2.210 with a market cap of 1.590 billion - China Antibody at 3.210 with a market cap of 4.371 billion - Jiahua Bio at 4.460 with a market cap of 2.347 billion [2]

Summary of Key Points Core Viewpoint - The Hong Kong biotechnology sector experienced a significant decline, with most stocks falling sharply, indicating a bearish trend in the market [1]. Company Performance - **Gilead Sciences (歌礼制药-B)**: Decreased by 15.06%, latest price at 15.510, market cap at 14.946 billion [2]. - **Yunkang Group (云康集团)**: Fell by 14.18%, latest price at 2.300, market cap at 1.429 billion [2]. - **PAG Pharmaceuticals (派格生物医药-B)**: Dropped by 9.15%, latest price at 31.760, market cap at 12.258 billion [2]. - **Tengsheng Boao (腾盛博药-B)**: Declined by 8.30%, latest price at 2.210, market cap at 1.590 billion [2]. - **China Antibody (中国抗体-B)**: Decreased by 7.49%, latest price at 3.210, market cap at 4.371 billion [2]. - **Jiahua Biotech (嘉和生物-B)**: Fell by 7.08%, latest price at 4.460, market cap at 2.347 billion [2]. - **Sillod Pharmaceuticals (思路迪医药股份)**: Dropped by 6.06%, latest price at 7.910, market cap at 2.042 billion [2]. - **Tiger Med (泰格医药)**: Decreased by 5.73%, latest price at 54.250, market cap at 46.711 billion [2]. - **Kangji Medical (加科思-B)**: Fell by 5.69%, latest price at 8.120, market cap at 6.404 billion [2]. - **WuXi AppTec (药明巨诺-B)**: Dropped by 5.14%, latest price at 5.720, market cap at 2.382 billion [2]. - **Three Leaf Clover Biotech (三叶草生物-B)**: Decreased by 5.13%, latest price at 0.740, market cap at 0.960 billion [2]. - **Yiming Oncology (宜明昂科-B)**: Fell by 4.76%, latest price at 12.810, market cap at 5.218 billion [2]. - **Junshi Biosciences (君实生物)**: Decreased by 4.69%, latest price at 34.540, market cap at 35.462 billion [2]. - **Zhonghui Biotech (中慧生物-B)**: Fell by 4.39%, latest price at 51.150, market cap at 20.125 billion [2]. - **Zhaoyan New Drug (昭衍新药)**: Decreased by 4.38%, latest price at 23.140, market cap at 17.343 billion [2].

格隆汇8月18日丨中国抗体-B(03681.HK)公布，公司将于2025年8月29日召开董事会会议，以（其中包 括）审议及通过集团截至2025年6月30日止六个月的中期业绩及其发布。 ...

香 港 交 易 及 結 算 所 有 限 公 司 及 香 港 聯 合 交 易 所 有 限 公 司 對 本 公 告 的 內 容 概 不 負 責，對其準確性或完整性亦不發表任何聲明，並明確表示概不就因本公告全部或 任何部分內容而產生或因倚賴該等內容而引致的任何損失承擔任何責任。 於 本 公 告 日 期 ， 本 公 司 執 行 董 事 為 梁 瑞 安 博 士 ， 本 公 司 非 執 行 董 事 為 陳 海 剛 博 士、董汛先生、王小素女士及張健民博士，以及本公司獨立非執行董事為George William Hunter CAUTHERLEY先生、韓炳祖先生、李志明博士、李之秀女士及申楠 先生。 中國抗體製藥有限公司 執行董事、主席兼首席執行官 梁瑞安博士 香港，二零二五年八月十八日 SinoMab BioScience Limited 中 國 抗 體 製 藥 有 限 公 司 （於香港註冊成立的有限公司） （股份代號：3681） 董事會會議召開日期 中國抗體製藥有限公司（「本公司」及其附屬公司「本集團」）董事會（「董事會」）兹通 告謹定於二零二五年八月二十九日（ 星期五 ）舉行董事會會議，以考慮及通過本集 團截至二零二 ...