Sonoco of Hartsville, S.C. employee hurt in workplace accident HARTSVILLE, S.C. (From news reports) -- An employee at Sonoco of Hartsville was injured in a workplace accident Monday night at the company's number 4 mill, according to Brian Risinger with Sonoco Corporate Communications. Risinger said the employee's arm was injured. He added the employee was transported to the hospital and they are awaiting further details on their status.