Core Viewpoint - Jiangxi Biological Products Research Institute Co., Ltd. is seeking to go public on the Hong Kong Stock Exchange, focusing on its core product, tetanus antitoxin (TAT), amidst a growing market for traditional antiserum therapies [1][2]. Market Position - Jiangxi Biological holds over 65% market share in China's tetanus antitoxin market and is the largest provider and exporter of human TAT in the country [2][3]. - The global tetanus antitoxin market is projected to reach USD 8.46 million by 2024, with a compound annual growth rate (CAGR) of 24.0% from 2024 to 2028 [2][8]. Financial Performance - The company’s revenue from human TAT accounted for 93.9%, 93.0%, and 93.3% of total revenue in 2022, 2023, and 2024, respectively [4][5]. - Total revenue increased from RMB 141.96 million in 2022 to RMB 220.76 million in 2024, reflecting a CAGR of 15.9% [4][5]. Profitability - Jiangxi Biological's overall gross margin fluctuated significantly, recorded at 75.4%, 67.8%, and 70.3% for the years 2022 to 2024, primarily due to the volatility in the average selling price of human TAT [6][4]. - The gross margin for domestic sales of human TAT was 88.7%, 81.8%, and 84.3% during the same period, influenced by the cost of horse plasma used in production [6]. Product Diversification - The company is actively working to diversify its product offerings beyond human TAT, including the development of snake antivenom and rabies immunoglobulin F(ab')2 [9][10]. - Plans are in place to enhance its veterinary product line, focusing on veterinary tetanus antitoxin and PMSG, with a new production line expected to meet EU GMP standards by Q4 2026 [10][12]. Market Growth Potential - The veterinary tetanus antitoxin market in China is projected to reach USD 2.2 million by 2024, with a CAGR of 42.8% from 2024 to 2028, indicating significant growth potential despite its smaller size [8][9].

导 语：公司虽然提到多元化战略，但目前仍高度依赖单一产品，若未能有效拓展新业务，未来 增长可能受限。 据江西生物制品研究所股份有限公司在港交所递交的招股书内容，公司已迈出了冲刺港股 IPO 的关 键一步，中金公司和招商证券国际担任联席保荐人。此次 IPO 计划将为公司发展注入新的活力，但 在这背后，也伴随着诸多值得投资者深入探讨的因素。 江西生物定位为人用破伤风抗毒素（人用 TAT）提供商和出口商、抗血清平台商。招股书引用弗若 斯特沙利文资料显示，按 2024 年销量计，江西生物在中国及全球人用 TAT 市场份额分别高达 65.8% 及 36.6%，是当之无愧的行业龙头，且在中国市场已连续 18 年保持 50% 以上的份额。 公司业务围绕人用药和兽药产品展开，人用 TAT 是核心产品，在 2022 - 2024 年，其销售收入占公 司总收入的比例均超 90%。 除了成熟的人用 TAT 业务，公司还拥有兽用破伤风抗毒素、孕马血清促性腺激素（PMSG）等产 品，部分产品完成上市批准重新注册后将投放市场。 此外，公司在研管线布局了人用抗蛇毒血清、 马狂犬病免疫球蛋白 F (ab') 2 及多种兽用抗感染药物，展现出 ...