A shipment of dry sawdust used for fuel was delivered to the site on 7-11-2020 at 4 PM. The load is delivered in a 53 foot semi-van container and is left in the container for distribution to the process at a different time. Later that evening at 11:00 PM a Minntac employee noticed smoke coming out of the van. Minntac employees put out the fire quickly and put people on watch.