ABOUT US THE SCIENCE PIPELINE NEWS CONTACT INVESTORS ABOUT US HCW Biologics is developing transformative immunotherapies to lengthen healthspan by disrupting inflammaging. HCW Biologics is an innovative immunotherapy company developing novel therapeutics designed to disrupt the link between chronic, low-grade inflammation and age-related disorders. This field, known as inflammaging, targets the unresolved inflammatory responses and chronic, low-grade inflammation associated with advancing age and believed to be a significant contributing factor to cancer and several chronic conditions, including cardiovascular disease, diabetes, neurodegenerative disease, and autoimmune disease. The core of HCW’s discovery and development efforts revolves around the company’s internally developed Tissue FactOr-Based FusIon (TOBI™) platform, which is designed to engineer multi-functional fusion protein molecules and protein complexes. The technology employs a Tissue Factor (TF) scaffold that can be packaged with multiple protein targets, including cytokines, chemokines, ligands, receptors, and single-chain antibodies, carefully selected to work in tandem to stimulate and target desired immune responses and inhibit unwanted inflammation. Copyright © 2021 HCW Biologics Inc.

ABOUT US THE SCIENCE PIPELINE NEWS CONTACT INVESTORS CONTACT Phone: (954) 842-2024 Fax: (954) 842-2037 Email: info@hcwbiologics.com Address: 2929 N Commerce Parkway Miramar, FL 33025 Hours: Mon-Fri 9:00 AM – 5:00 PM ET SEND MESSAGE Copyright © 2021 HCW Biologics Inc.

ABOUT US THE SCIENCE PIPELINE NEWS CONTACT INVESTORS Careers Thank you for your interest in HCW Biologics. Please submit a resume using the form below for future consideration. You may also view all current job opportunities on Indeed.com. Indeed Job Listings Name Phone Email Message Upload your resume (PDF files only) Send Message HCW Biologics is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. About Us Leadership and Board The Science TOBI™ Platform Our Focus Pipeline News News Releases Publications Contact General Inquiries Careers Investors Copyright © 2021 HCW Biologics Inc.