Serious Materials, the company that took over the Republic Windows factory after the 2009 sit-in, says it is closing the Chicago plant immediately. In response, workers are occupying the site again, asking for more time to explore the plant's future. Updates are being posted to the Occupied Tribune site, where it is reported that the workers and management are making progress with their negotiations. UPDATE: An agreement has been reached to keep the plant open for 90 days to explore options for new ownership.