Alphamab Oncology  announced that Jiangsu Alphamab Biopharmaceuticals Co., Ltd. , a wholly-owned subsidiary of the Company, entered into a research and collaboration agreement (the "Collaboration Agreement") with ArriVent BioPharma, Inc., the shares of which are listed on the Nasdaq Global Market (ticker symbol: AVBP) ("ArriVent"), pursuant to which, Alphamab and ArriVent will collaborate to use Alphamab's proprietary linker-payload (Alphatecan) and glycan-conjugation platforms to discover and develop novel antibody drug conjugates ("ADC").

Alphamab will retain the rights to develop and commercialize the related ADC products under the Collaboration Agreement, in mainland China, Hong Kong Special Administrative Region, Macau Special Administrative Region and Taiwan Region (collectively, the "Greater China Region"). ArriVent will have exclusive rights to develop and commercialize the ADC products in the field of oncology in countries and regions outside of the Greater China Region and will be responsible for and bear the cost of the corresponding development of the ADC products.

According to the Collaboration Agreement, Alphamab is entitled to receive a one-time, non-refundable upfront payment and potential milestone payments based on the achievement of certain regulatory, development, and sales milestones of up to US$615.5 million in aggregate for the programs. In addition, Alphamab is also entitled to receive tiered sales royalties from ArriVent for each ADC product.

Dr. Ting Xu, Chairman, and CEO of Alphamab Oncology, remarked, "ArriVent shares our passion for developing differentiated, clinically valuable, and globally competitive new drugs. This collaboration, based on Alphamab's proprietary and clinically validated glycan-conjugation platform, combined with ArriVent's deep knowledge in oncology and extensive development experience, provides us with the opportunity to work together to deliver important new oncology therapeutics to patients."

Bing Yao, Chairman and Chief Executive Officer of ArriVent, remarked, "This exciting collaboration strengthens and complements our pipeline with the potential to add multiple innovative new ADC programs and exemplifies our strategic model of identifying and developing potential first-and best-in-class product candidates from across the globe. We look forward to complementing the research and discovery capabilities of Alphamab with our global drug development and commercialization expertise to address the unmet needs of cancer patients."