The fire started at about 9 o’clock in the southwest corner of the main building on East State Street. About 250 employees were in the building at the time and were evacuated.
Besides the company’s own emergency response team, the Olean, Westons Mills, Allegany and Portville fire departments battled the blaze.
Employees in the administration part of the building were allowed back in at around 11 a.m. People working in the manufacturing section were sent home for the day.
A cause of the blaze hasn’t been determined yet.