10-19-20 at 3am the socks inside the #2 dryer baghouse caught fire, the fire moved to the outside of the baghouse. The fire department was called, the fire was extinguished within 35 mins. MSHA was immediately notified and was on site for the investigation on 10-20-20; the investigation is ongoing. We believe the socks caught fire while cleaning hot fly ash from the #2 furnace.