Premium BsAb introduced an LC-MS-assisted workflow for bispecific antibody manufacturing aimed at improving heterodimer purity when producing formats that often suffer from mispairing and low yields. The offering combines chain ratio optimization and high-titer CHO expression with LC-MS-assisted purification to deliver bispecific antibodies with over 98% heterodimer purity across diverse formats. The reported approach targets a recurring manufacturing pain point for bispecifics, where correct pairing can be difficult to achieve consistently at scale. By integrating analytics into purification, the company’s pitch emphasizes higher product quality and potentially better process robustness. For developers and CMC teams, improved purity and yield can reduce downstream burden and support faster iteration between constructs and process conditions. The product framing suggests an effort to align manufacturing execution with the analytical demands of modern bispecific portfolios, where characterization requirements are often stringent.