In May 2023, Shanghai Escugen Biotechnology Co., Ltd. ("Escugen") announced the completion of a $100 million Series A+ financing round.
On June 16, 2025, Shanghai Escugen Biotechnology and SunRock Biopharma announced a strategic alliance tojoin forces in a strategic partnership to co-develop SRB123, a First-in-Class antibody-drug conjugate (ADC) targeting C-C motif chemokine receptor 9 (CCR9).