The Hull Corporation, located along Main Lane in Lehighton since the 1960s, will be closing the local plant next month. Hull, which has a 20,000 square foot building in Lehighton, manufactures hydraulic presses and free-drying systems for the electronic and pharmaceutical industries. Fifteen of the 18 people employed in Lehighton will relocate to the firm's Hatboro plant. The company will provide a van for their transportation daily at a nominal rate.