Shanghai, April 15, 2025 — Henlius (2696.HK) held its 2025 Global R&D Day under the theme of “Collaborate to Create”. Senior executives from Henlius gathered with leading experts, scholars, and heads of innovation from across the industry to engage in in-depth discussions on the latest advances in R&D, future strategic planning, and the deployment of cutting-edge technologies and therapies. The event drew hundreds of guests from academia, industry, and the investment community, making it a grand gathering of shared insight and collaboration.

Jason Zhu, Executive Director and CEO of Henlius, stated: "At Henlius, we remain steadfast in our patient-centric philosophy and continue to strengthen our differentiated competitive edge through innovation-driven R&D. We are advancing the development of several key innovative assets, including  HANSIZHUANG (serplulimab, anti-PD-1 mAb), HLX22 (anti-HER2 mAb), and HLX43 (PD-L1 ADC), with the potential to reshape the treatment landscape for lung and gastrointestinal cancers. Beyond that, we are actively exploring frontier technologies such as targeted therapies, immunotherapies, and glyco-editing, as we build a diversified innovation platform. In terms of global expansion, Henlius is strategically focused on major markets such as the U.S., EU, and Japan. Through full value chain integration and deepening international partnerships, we are making a strategic leap from exporting products to building a global value chain. Looking ahead, Henlius will continue to focus on antibody drug innovation, accelerate breakthroughs in targeted and immune therapies, and drive the global advancement of China's innovative biologics. Our goal is to deliver high-quality, affordable biologics to patients around the world while forging a sustainable, globally integrated value core."

Jijun Yuan, CSO of Henlius, elaborated on the company's differentiated innovation strategy: "Henlius' R&D strength is reflected not only in our innovative pipeline but also in the continuous expansion of our platform capabilities. We focus on key therapeutic areas such as oncology and autoimmune diseases, extending our innovation reach to diverse modalities—including protein-based therapies, small molecules, and ADCs—to maximize synergistic potential across pipeline assets. Our three flagship technology platforms—the Hinova TCE (tri-specific T-cell engager) platform, the independently developed ADC platform Hanjugator™, and the AI-driven drug discovery platform HAI Club—have formed a collaborative R&D matrix. Leveraging these platforms and AI-driven approaches, we are accelerating the development of differentiated molecules, such as TCEs for solid tumors, to rapidly deliver more potential blockbuster therapies."

In Henlius' innovative pipeline, late-stage clinical assets such as HLX22 and HLX43 have emerged as breakthrough candidates, underscoring the company's potential to drive future growth. Lixin Feng, Strategic Products Deputy GM of Henlius, shared that, "HLX43 is a precisely designed ADC targeting the pan-tumor antigen PD-L1. Its core framework incorporates the company's proprietary novel anti-PD-L1 mAb, combined with MediLink Therapeutics' innovative linker-toxin payload featuring a dual-release mechanism (intracellular and extracellular). As the world's second and China's first PD-L1 ADC to enter clinical development, HLX43 has demonstrated early potential as an innovative PIP (pipeline in a pill).Preclinical studies have shown favorable druggability and safety profiles with significant tumor-killing activity. Meanwhile, clinical studies of HLX43 as both monotherapy and in combination with HANSIZHUANG are accelerating across multiple solid tumors, with the potential to deliver superior treatment options for patients." 

At the event, Professor Lin Shen, the leading principal investigator of the MRCT Phase 3 trial for HLX22, remarked: "Henlius' HLX22 is a highly promising HER2-targeted therapy distinguished by both its mechanism of action and clinical performance. Its differentiated molecular design enables simultaneous binding to HER2 alongside trastuzumab, synergistically blocking all HER2 dimer formation and disrupting HER2-mediated signaling pathways. Moreover, HLX22's clinical development strategy is both pioneering and ambitious—it targets gastrointestinal cancers, a field with urgent unmet needs and high heterogeneity, where the drug has demonstrated exceptional antitumor efficacy. This positions HLX22 to potentially redefine first-line treatment for HER2-positive gastric cancer. HLX22 has demonstrated clinical development potential as a pan-tumor therapeutic for all HER2-positive cancers. We look forward to HLX22 benefiting more patients worldwide."

Henlius is strategically advancing key innovations in biopharma by harnessing AI to sharpen its cutting-edge capabilities. Simon Hsu, CTO and SVP of Henlius, highlighted breakthroughs in AI-driven drug development, with a focus on next-generation hyaluronidase Henozye™, "Utilizing AI modeling, Henozye™ achieved significantly faster development cycles versus conventional methods while demonstrating superior enzyme activity and stability. Its exceptional performance across buffer systems and co-formulations provides critical support for subcutaneous delivery—overcoming injection volume limits to enable high-dose drug development," He emphasized that this hyaluronidase platform will transform the subcutaneous delivery market. "Through collaborative partnerships, we're accelerating subcutaneous formulations for both novel drugs and biosimilars, extending product lifecycles sustainably."

Jin Li, Vice President of Henlius Regulatory Affairs, stated that "We are advancing our Internationalization 2.0 Strategy with Japan as a key market, leveraging the differentiated advantages of our core pipeline assets HLX22 (anti-HER2 mAb) and serplulimab (HLX10, anti-PD-1 mAb) in gastric cancer and lung cancer. We have initiated clinical trials in Japan to establish foundational support for indication development. Japan represents a strategic priority as a global pharmaceutical hub, offering unique opportunities through its aging population dynamics and innovative drug policy environment. We are systematically building local operational capabilities while strengthening our market position through innovative biologics. By integrating global clinical resources with localized strategies, we are creating an end-to-end value chain from clinical development to commercialization. As a Chinese biopharma innovator, we are reshaping the landscape in global markets through this approach."

Henlius is committed to building a global innovation network and fostering an international collaborative ecosystem, setting a benchmark for partnerships spanning product development, market access, and localized operations. During the panel discussion moderated by Henlius SVP and Chief Business Development Officer, Ping Cao, 2022 Nobel Laureate and Palleon Co-founder Professor Carolyn Bertozzi, Palleon CEO James Broderick, MediLink CMO Steve Chin, KGbio CEO Sie Djohan and Sermonix Founder and CEO David Portman joined the discussion under the theme "Partnering for Success - Building a Global Biopharma Ecosystem."

Professor Carolyn Bertozzi highlighted the critical role of sialoglycans in disease treatment, particularly their mechanism in tumor immune evasion and autoimmune diseases, as well as their vast potential as a cutting-edge global technology for novel drug development. Palleon is actively advancing its proprietary Enzyme-Antibody Glycan Ligand Editing (EAGLE) platform and has entered into collaborations with Henlius to develop bifunctional antibody-sialidase fusion proteins and human sialidase fusion protein HLX79 (E-602)—leveraging the EAGLE platform to target cancer and autoimmune diseases, respectively. 

During the follow-up discussion, panelists unanimously recognized Henlius' comprehensive capabilities spanning cutting-edge innovation, clinical development, and manufacturing excellence, while particularly commending the team's efficient collaboration and responsive partnership approach. Industry partners emphasized that their decision to collaborate with Henlius was rooted in strong confidence in the company's fully integrated biopharmaceutical platform that covers the entire value chain from research to commercialization. With established expertise in antibody development and a demonstrated ability to execute rapid yet reliable clinical strategies, Henlius has built a world-class manufacturing quality system meeting international standards, creating a robust foundation for global commercialization. Ping articulated the company's partnership philosophy: "We build on trust as our foundation, drive progress through efficiency, and connect through innovation." This guiding principle continues to shape Henlius' growing global collaborative ecosystem. Moving forward, the company remains committed to deepening complementary technology partnerships and accelerating exploration in frontier therapeutic areas. By leveraging its strong partner network, Henlius aims to enhance worldwide access to innovative therapies and deliver high-quality treatment solutions to patients across the globe.

In biopharmaceutical R&D, the translational gap from preclinical research to clinical application remains a persistent challenge across the industry. For Henlius, this very gap represents a critical breakthrough point to truly deliver clinical benefit by staying centered on the patient. At the close of the event, Jijun Yuan moderated a panel discussion on the theme "From Discovery to Delivery: Patient-Centric Innovation in Practice." He was joined by Lei Tang, Head of Translational Medicine Unite China R&D at Sanofi; Li Peng, CSO of Palleon; Feng Ren, Co-CEO and CSO of Insilico; and Guoqiang Hua, Founder and Chairman of Dan1Med. Guests shared insights from the perspectives of multinational pharma, cutting-edge biotech, AI-driven biopharma company and technology platform company. Discussions spanned innovations in tools that enhance precision in clinical trial design, the acceleration of R&D through advanced AI-driven data strategies, and the current challenges faced. Ultimately, all perspectives converged on a shared vision: building a collaborative, barrier-free ecosystem is essential to truly achieving a seamless transition "from discovery to delivery."

From biosimilars to first-in-class therapies, and from deepening presence in mainstream markets to expanding into multi-polar global markets, Henlius continues to push the boundaries of the industry with its multiple driving forces such as innovation and globalization. In 2025, Henlius will remain committed to its core theme of "Collaborate to Create", further powering its innovation engine to accelerate the transformation from technological strength to clinical value. The company aims to drive explosive growth across its innovative pipeline while advancing both technological breakthroughs and international collaboration. Looking ahead, Henlius will continue to write a new chapter for China's biopharmaceutical industry on the global stage—bringing Chinese innovation to contribute to the advancement of human health worldwide.