• BioDlink helps Lepu Biopharma win China's marketing approval for EGFR-targeted ADC treating recurrent or metastatic nasopharyngeal carcinoma
• This Becotatug Vedotin injection approval is BioDlink's first commercial ADC manufacturing initiative worldwide, validating its complex biologics commercialization capabilities

BioDlink (1875.HK) congratulates its partner Lepu Biopharma (2157.HK) on receiving conditional marketing approval from China's National Medical Products Administration (NMPA) for MEIYOUHENG (Becotatug Vedotin injection). This Class 1 innovative antibody-drug conjugate (ADC) targets the epidermal growth factor receptor (EGFR) for the treatment of recurrent or metastatic nasopharyngeal carcinoma (R/M NPC). Significantly, this is the world's first approved non-photoimmunological EGFR-targeted ADC and a first-in-class innovation. This project is BioDlink's first commercial ADC manufacturing initiative globally, validating its robust capabilities in the commercialization of complex biologics.

This approval builds on BioDlink's earlier success with Lepu Biopharma's ADC program that achieved 100% first-pass success across technology transfer, Process Performance Qualification (PPQ), and Pre-Approval Inspection (PAI).

The program, designated as a Breakthrough Therapy Project, required rapid tech transfer and full production line delivery from monoclonal-antibody Drug Substance through ADC Drug Product.

BioDlink's performance in this project secured BLA approval on October 30, 2025, demonstrating its capacity to meet aggressive regulatory timelines and ensure commercial readiness for global markets.

ADC manufacturing is technologically demanding, requiring exceptional process capabilities and robust quality systems. BioDlink participated in the entire development and production cycle, from technology transfer, process development, and analytical method establishment to clinical sample and GMP-compliant commercial batch manufacturing. This reflects the company's end-to-end capabilities in supporting complex biologics from R&D to market launch.

Through close coordination with Lepu Biopharma and multiple regulatory authorities, BioDlink established an integrated quality management system. This system ensures seamless coordination across the entire production chain—accelerate the timeline for pivotal clinical batch production and subsequent PPQto meet aggressive regulatory submission goals and aligns with global GMP standards, including those of China, the U.S., and the EU. BioDlink's manufacturing facilities have obtained GMP certifications from several countries and Foreign Manufacturer Approval from Japan's PMDA. This collaboration sets a practical model for efficient multi-party industry collaboration and resource integration in the biopharma sector.

BioDlink's manufacturing facilities have obtained GMP certifications from China, Brazil, Argentina, Indonesia, Egypt, Colombia, Pakistan and Thailand, as well as Foreign Manufacturer Approval from Japan's PMDA. And also passed EU-QP 5 times in these years. This achievement marks a major step forward for ADC commercialization and demonstrates a practical model for multi-party industry collaboration and efficient resource integration.

Dr. Ziye Sui, Executive Director and CEO of Lepu BioPharma, commented: "We sincerely thank the BioDlink team for their outstanding CDMO services and strong collaboration. This approval also establishes a practical pathway for multi-party collaboration, offering new hope for R/M NPC patients who have failed anti-PD-(L)1 and platinum-based therapies."

Dr. Jian Zhang, Chief Operating Officer, BioDlink, noted: "The approval of this pilot batch highlights the increasing technical and quality coordination demands placed on both the Marketing Authorization Holder (MAH) and the CDMO. Moving forward, we will continue working closely with our partners to accelerate the launch of innovative medicines to benefit patients worldwide."