Soligenix, Inc. (OTCQB: SNGX) (Soligenix or the Company), a late-stage biopharmaceutical company developing products that address unmet medical needs in the areas of inflammation, oncology and biodefense, announced today that it has initiated a development agreement with Emergent BioSolutions to implement a commercially viable, scalable production technology for the RiVax™ drug substance protein antigen. RiVax™ is a vaccine candidate being developed to protect against ricin exposure. Soligenix will transfer the manufacturing processes and analytics to Emergent to conduct process development work that could potentially lead to a future commercial manufacturing collaboration.