For the three months ended September 30, 2014, two customers and for nine months ended September 30, 2014, three customers each generated more than 10% of the Company’s product revenue. In aggregate, sales to these customers accounted for 70% and 82% of the Company’s product revenue. As of September 30, 2014, the amount due from these three customers was $2,461,017. This concentration makes the Company vulnerable to a near-term severe impact should the relationships be terminated.

 

For the three and nine months ended September 30, 2013, two customers each generated more than 10% of the Company’s product revenue. Sales to these customers accounted for 73% and 81% of the Company’s product revenue. As of September 30, 2013, the amount due from these customers was $1,073,631.