Olin Corporation is a manufacturer concentrated in two business segments: Chlor Alkali Products and Winchester. Chlor Alkali Products manufactures and sells chlorine and caustic soda, hydrochloric acid, hydrogen, bleach products and potassium hydroxide. During the year ended December 31, 2011, the Chlor Alkali products segment represented 71% of sales. During 2011, the Winchester products segment represented 29% of 2011 sales, include sporting ammunition, reloading components, small caliber military ammunition and components, and industrial cartridges. Its subsidiary, Olin Canada ULC, operates one chlor alkali facility in Becancour, Quebec, which sells chlor alkali-related products within Canada and to the United States. Its subsidiary, Winchester Australia Limited, loads and packs sporting and industrial ammunition in Australia. On February 28, 2011, it acquired PolyOne Corporation�s (PolyOne) 50% interest in the SunBelt Chlor Alkali Partnership (SunBelt).