Concentrations

3 Months Ended

Mar. 31, 2013

Basis Of Presentation

8. Concentrations

(1) Concentration of customers

Sales to five largest customers accounted for approximately 22% and 28% of our net sales during the three months ended March 31, 2013 and 2012, respectively. No single customer represented over 10% of total sales for the three months ended March 31, 2013 and 2012.

(2) Concentration of suppliers

Our top two suppliers accounted for 18.4% and 10.8% of our purchases for the three months ended March 31, 2013, no other single supplier accounted for over 10% of our purchase. During the first quarter of 2012, top two of our suppliers accounted for 25.0% and 17.8% of our purchases, no other single supplier accounted for over 10% of our purchase.