Headquartered in King of Prussia, PA., UPI is the North American division of United Phosphorus, Ltd (UPL).,a global supplier of post patent technologies with more than 30 years of industry experience and success.  Over the years, UPI has continued to grow through strategic market acquisitions and enhancements to its manufacturing capabilities.  Additionally, our expanding portfolio of proprietary brand formulations and strategic active ingredients offer unique solutions to many of the key challenges faced by its customers and the industry.  UPI is driven to deliver the high-quality, value-added products you need to help you achieve the next level of productivity and profitability. All of its employees believe this vision and are committed to providing you with the superior levels of service required to meet this goal.