Amgen staff discuss how operations work at the site while highlighting the importance of volunteering and giving back to the Rhode Island community. Amgen announced plans to build a new state-of-the-art next-generation biomanufacturing plant at its campus in West Greenwich, R.I. The new plant, the first of its kind in the United States (U.S.), will employ Amgen's proven next-generation biomanufacturing capabilities and manufacture products for the U.S. and global markets.