A chemical leak at a silver recovery facility in Institute, West Virginia, resulted in two fatalities and the hospitalization of 19 individuals on Wednesday, April 22, 2026. The incident occurred at the Catalyst Refiners plant as personnel were engaged in procedures to shut down portions of the facility. According to Kanawha County Commission Emergency Management Director C.W. Sigman, the event was triggered by a violent chemical reaction involving nitric acid and an unidentified secondary substance during a cleaning process.
The reaction produced toxic hydrogen sulfide gas, which officials believe led to the casualties. Kanawha County Commission President Ben Salango confirmed that of the 19 people transported to regional medical centers, one remains in critical condition. The casualty list includes seven emergency medical responders who were exposed to the fumes while attempting to treat victims at the scene. Reports indicated that some affected individuals were transported to hospitals via private vehicles and, in one instance, a municipal garbage truck, highlighting the urgency of the evacuation.
Director Sigman noted that the transition phases of chemical operations—specifically starting or ending a reaction—represent the periods of highest risk for industrial accidents. The Catalyst Refiners facility specializes in the recovery of precious metals, a process that frequently utilizes corrosive acids and complex chemical stripping agents. The U.S. Occupational Safety and Health Administration (OSHA) and the Chemical Safety and Hazard Investigation Board (CSB) typically oversee investigations into such industrial releases to determine if safety protocols or containment systems failed.
The location of the leak, Institute, sits within a region historically known as Chemical Valley due to its high concentration of industrial plants along the Kanawha River. This corridor has a long history of chemical manufacturing and processing, housing major facilities operated by companies such as Dow Chemical and Union Carbide. The proximity of these industrial sites to residential areas and educational institutions, including West Virginia State University, has historically necessitated rigorous emergency management coordination between private industry and local government.
This incident follows a series of federal efforts to tighten the Risk Management Program (RMP) rule, which governs how facilities handle hazardous substances. While the specific regulatory standing of the Catalyst Refiners plant is under review by local officials, the event underscores the persistent risks associated with chemical processing in the Appalachian industrial belt. Local authorities have not yet released the identities of the deceased pending notification of kin, and the facility remains cordoned off as environmental crews work to ensure the site is stabilized.