Riley Resource Group will formally dedicate a new Pleasant Hill corporate headquarters building on Dec. 9. The renovated 12,000-square-foot building at 4400 E. University Ave. houses about 35 of the group's 85 employees. Headed by Robert Riley Jr., the group of agricultural businesses includes Feed Energy, FEC Solutions, Decision Innovation Solutions and Riverhead Resources. The headquarters, owned by Riley, provides additional space for the companies' purchasing, procurement, sales and other support functions and augments existing office and manufacturing space in Des Moines, Urbandale, Sioux City and Pacific Junction. The building has approximately 2,500 square feet of lease space available for additional tenants.