A South Hall County company’s plans for an $8 million expansion could mean an economic boost for Flowery Branch. FriconUSA, which makes heating, ventilation and air conditioning equipment, has outgrown current space at Oakwood South Industrial Park off McEver Road and hopes to move to an 11-acre site off 4362 Thurmon Tanner Parkway just east of H.F. Reed Industrial Parkway. The Thurmon Tanner property has a 20,000-square-foot building hooked to a septic system.