LigaChem Biosciences Inc. (KOSDAQ: 141080) is a clinical-stage biopharmaceutical company that discovers, develops, and commercializes novel therapeutics leveraging proprietary medicinal chemistry platforms, primarily focusing on antibody-drug conjugates (ADCs), immuno-oncology drugs, small molecule payloads, antibiotics, and anti-fibrotics for oncology, hematologic malignancies, and other unmet medical needs. The company offers next-generation ADC technologies such as its ConjuALL platform that overcomes limitations of conventional ADCs through enhanced stability, efficacy, and safety profiles; differentiated ADC candidates including HER2-ADC (Caxmotabart Entudotin), CD19-ADC (LCB73), CA242-ADC (IKS04), and FRα-ADC (IKS012); novel immuno-oncology small molecules and ADC payloads; and additional programs in antibiotics and anti-fibrotic therapies, while also providing medical devices and supplies. Founded in 2006 and headquartered in Daejeon, South Korea, with a Seoul sales office, LigaChem Biosciences operates globally through research collaborations, licensing agreements, and clinical trials primarily in South Korea, the United States, Europe, and China, targeting pharmaceutical partners and patients in oncology and related fields. In April 2024, the company changed its name from LegoChem Biosciences Inc. to LigaChem Biosciences Inc. to reflect its strategic evolution. Recent developments include a January 2025 extension of its ADC development and manufacturing collaboration with Samsung Biologics to bolster supply chain capabilities; a strategic $25 million investment announced in March 2025 acquiring a 26.6% stake (potentially up to 73.9%) in partner Iksuda Therapeutics to accelerate global clinical trials and commercialization of shared ADC pipelines like HER2-ADC and CD19-ADC; and an April 2025 R&D and licensing option agreement with 1STBIO to advance next-generation ADC payloads for first-in-class oncology programs.