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.

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, the maker of blockbuster weight loss and diabetes drugs Zepbound and Mounjaro, said it will invest an additional $27 billion to build four new manufacturing plants in the United States, shoring up domestic manufacturing as President Donald Trump threatens new tariffs on pharmaceuticals.

Pharmaceutical giant Eli Lilly announced Wednesday that it plans to invest roughly $27 billion in United States manufacturing more than doubling its investment over the past five years. The company said this will be the largest pharmaceutical manufacturing investment in United States history.

Eli Lilly and Co. is in negotiations with several states and plans to announce the locations of four new manufacturing plants later this year.

Eli Lilly plans to spend $27 billion to build new drug manufacturing sites in the U.S., at a time when President Trump is seeking to press drugmakers to move stateside.

The pharmaceutical firm is growing its presence across three states, creating 3,000 jobs.

Eli Lilly announced plans to invest $27 billion in four new manufacturing sites in the United States. The pharma giant also made a wider range of doses of its blockbuster weight-loss drug Zepbound available in vials and at lower prices.

Eli Lilly and Company said Wednesday they plan to build new pharmaceutical manufacturing sites in the United States.

Eli Lilly (LLY), the maker of the blockbuster weight-loss drug Zepbound, announced Wednesday that it plans to invest $27 billion in four new manufacturing sites in the United States. But the company made it clear that those plans hinge on tax cuts.