EastMabBio: Your Trusted Partner for GMP-Grade Recombinant Proteins, Cell Culture Media Supplements, and IVD Diagnostic Raw Materials

In the rapidly evolving landscape of global biopharmaceuticals and in vitro diagnostics (IVD), the quality and consistency of raw materials can make or break a product's success. At Jiangsu EastMabBiomedical Technology Co., Ltd. (EastMabBio), we understand that better than anyone. Founded in 2016 in Nantong, Jiangsu Province, China, EastMabBio has grown from an antibody drug research pioneer into a leading manufacturer of high-quality recombinant proteins serving the cell therapy, IVD diagnostics, synthetic biology, and cultivated meat industries worldwide.

From Antibody R&D to Recombinant Protein Excellence

Our journey began with a clear mission: to improve human health through biotechnology. Initially focused on antibody drug development, we recognized a critical gap in the market—access to affordable, scalable, and GMP-compliant recombinant protein raw materials. Rather than competing in the crowded therapeutic antibody space, we pivoted strategically to address this unmet need. Today, EastMabBio stands as a national high-tech enterprise and a Jiangsu Province "Specialized, Refined, Unique, and Innovative" (SRUI) company, trusted by hundreds of top-tier clients across the globe.

World-Class Manufacturing Infrastructure

Quality starts with infrastructure. Over the past few years, EastMabBio has invested over $30 million to build a state-of-the-art research, validation, and production ecosystem spanning more than 10,000 square meters. Our facilities include:

• 4,000 m² of GMP-standard workshops designed for pharmaceutical-grade protein production

• 1,000-liter maximum fermentation capacity, enabling large-scale bulk supply

• Multiple protein expression platforms: E. coli, yeast and mammalian cell lines (CHO-K1/293)

• Advanced antibody technology platforms: single-cell antibody discovery, fully human antibody generation, bispecific antibodies, glycoengineering (fucosylation knockout), and nanobody development

This vertically integrated infrastructure allows us to control every aspect of production—from gene synthesis and vector construction to fermentation, purification, and quality control—ensuring batch-to-batch consistency that our partners depend on.

Three Core Product Lines Powering Innovation

EastMabBio's portfolio is organized around three strategic product categories that address the most demanding applications in modern life sciences:

1. Cell Culture Proteins & Cytokines Our GMP-grade cytokines, growth factors, and media supplements are essential for stem cell expansion, CAR-T cell manufacturing, organoid development, and cultivated meat production. Products such as IL-2, IL-15, TNF-α, IFN-γ, and various growth factors meet the stringent purity and bioactivity requirements of clinical-grade cell therapy workflows.

2. IVD Diagnostic Proteins & Antigens We supply high-performance recombinant antigens and antibodies for immunoassay development, lateral flow devices, chemiluminescence platforms, and ELISA kits. Our diagnostic raw materials are validated for specificity, sensitivity, and stability—critical parameters for commercial IVD assay manufacturers.

3. Pharmaceutical & Diagnostic Enzymes From molecular biology enzymes to industrial biocatalysts, our engineered enzyme portfolio supports nucleic acid amplification, sequencing library preparation, and synthetic biology applications. Each enzyme undergoes rigorous activity validation and contaminant testing.

Quality Certifications & Regulatory Compliance

EastMabBio operates under ISO 13485 quality management systems, with GMP-compliant processes that align with international standards. Our quality control laboratory is equipped with advanced analytical instruments for SDS-PAGE, HPLC, mass spectrometry, endotoxin testing, and bioactivity assays. We are committed to supporting our clients' regulatory submissions with comprehensive documentation, including Certificates of Analysis (CoA), stability data, and manufacturing records.

Global Reach, Local Service

With R&D and production bases in Nantong and Suzhou, plus a subsidiary in Beijing, EastMabBio combines China's manufacturing efficiency with world-class scientific expertise. We offer flexible engagement models—from catalog product supply to custom protein expression services and long-term partnership programs.

Partner with EastMabBio

Whether you are developing the next breakthrough cell therapy, scaling an IVD diagnostic platform, or engineering microbes for sustainable bioproduction, EastMabBio provides the reliable, high-quality recombinant protein foundation your innovation demands. Visit www.eastmabbio.com to explore our product catalog or contact our technical team for a customized consultation.