An Altus, Okla.-based airplane manufacturer has announced plans to locate a portion of its sheet metal assembly plant in Coffeyville.
Quartz Mountain Aerospace will use Coffeyville as its site to produce the sheet metal subassemblies for the company’s Model 11E single-engine piston aircraft that is built in Altus.
Quartz Mountain Aerosapce vice president of operations Max Trimmel […]

