Grimsby's Novartis plant to remain open until end of 2022 More than 200 jobs will be retained until the end of next year A second delay in the closure of Novartis' Grimsby site has been confirmed (Image: Grimsby Live) Grimsby’s Novartis plant is to remain open for a further year, after a second stay of execution was confirmed. More than 200 jobs have been safeguarded until the end of 2022, Business Live reports, with plans for the pharmaceutical giant to leave put on hold again. A bombshell announcement in September 2018 originally scheduled the South Humber Bank site to close at the end of 2020.