CorStone Industries LLC is building a 36,000-sq.-ft. addition to its manufacturing facility in Greenville, Ala., which will increase its size to 100,000 sq. ft. The company manufactures acrylic sinks and bathroom lavatories. The expanded facility is targeted for startup in October. Capacity at the Greenville site will increase to 800,000 units per year. The new facilities will accelerate the company's research and development efforts. A planned development laboratory will focus on fabrication processes for multi-layer co-extrusion, compounding and thermoforming. For more information, visit