Brookville Equipment Corp. promoted Chelsea Kocher to senior sales manager, mining. In addition to accepting her new nickname as the “Queen of Coal,” she will be head of new equipment sales for mining, including unit sales and rebuild sales. During her 11-year career at Brookville, the company said, she has learned essential knowledge about engines, reading schematics, hydraulic systems, electrical systems, axle building, unit functionalities and more. She began her career as a part sales technician.