Eli Lilly Plans $3.5 Billion Manufacturing Center in Lehigh County
Eli Lilly and Company will begin construction in mid-2026 on a $3.5 billion facility in Upper Macungie Township, Pa., for the manufacture of injectable medicines and devices. The project represents the largest investment made by a life sciences company in the state’s history, and will be the largest development ever to rise in the Lehigh Valley. The seven-building complex will enable the production of next-generation weight-loss therapies, including retatrutide, a first-in-class investigational GIP, GLP-1, and glucagon triple hormone receptor agonist.