Eli Lilly announced plans for four new pharmaceutical manufacturing sites to produce domestic medicine production in the United States and make the nation the world's leader in pharmaceutical production.

Eli Lilly said Wednesday it will build three manufacturing plants in the United States to make the key raw ingredients in its medicines, a push to bring home a critical part of the pharmaceutical supply chain that largely comes from foreign sources.

The story has been updated to correct the new site locations At a press conference in Washington, D.C., Eli Lilly And Co (NYSE:LLY) announced its plans to bolster its domestic medicine production across therapeutic areas by building four new pharmaceutical manufacturing sites in the United States.