Speer Carbon Company, LLC

Employee 1 was investigating a gas odor. While employee 1 was checking the equipment, a gas explosion occurred, resulting in a fire that burned the employee's face. Employee 2 entered the area and a second explosion occurred, causing burns to their face and arms. Employee 2 was hospitalized.

During fiberglass work, an employee mixed a methyl ethyl ketone peroxide (MEKP) catalyst with a cobalt chemical that they thought was a dye. A chemical reaction occurred, resulting in an explosion. The employee sustained second-degree burns on his back and a blister on his right arm.

At about 7:30 p.m. on August 12, 2025, an employee was using a backhoe to excavate accumulated slag and debris from a furnace tap area and ladle pit. Residual water in the material had not fully evaporated; upon disturbance, it reacted violently, resulting in an explosion. The employee suffered first, second, and some third-degree steam burns, mainly to the arms and knees with additional burns to the hands and the back of the neck. The employee was hospitalized.

An employee was cutting glass for a custom windshield and was using denatured alcohol during the cutting process. The denatured alcohol caught fire and the flame traveled to a gallon-sized container of the liquid. The can exploded and the employee sustained second- and third-degree burns from the waist up.

On April 18, 2025, an employee was cutting the lid off an empty 55-gallon drum using a plasma cutter. The drum originally contained a flammable liquid and residual liquid inside the drum ignited and exploded. The employee was hospitalized with burns to the face, chest, and arms.