CSL announces $1.5 billion expansion of Kankakee manufacturing plant Mar 10, 2026 | Construction, Top Stories Biotherapeutics company CSL joined Illinois leaders Monday to announce a nearly $1.5 billion expansion of its manufacturing facility at Kankakee.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.