CF Industries Holdings, Inc. announced that it is immediately restarting the ammonia plant at its Billingham, UK, complex. The restart follows an interim agreement reached on September 21, 2021 to cover the costs to restart the ammonia plant and produce CO2 for the UK market. CO2 is a byproduct of the ammonia production process. Safely restarting the ammonia plant at the Billingham Complex is expected to take several days.