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Significant Concentrations
 3 Months Ended
Dec. 31, 2013
Significant Concentrations [Text Block]

18. Significant Concentrations

(a)

Customers and Credit Concentrations

The Company had two customers that individually comprised 10% or more of net revenue for the three months ended December 31, 2012 and 2013 respectively as follows:

    Three months ended December 31,  

 

   2012     2013  

 

                        

Jiangsu Huatiantong Technology Limited.

 $  *     *   $ 4,805,932     11.3%  

Tinno Mobile Techonlogy Company Limited.

   *     *     7,545,750     17.8%  

Dongguan Yulong Telecom Technology Co., Ltd.

   7,600,002     11.9%     *     *  

* Comprised less than 10% of net revenue for the respective periods.

The Company had two customers that individually comprised 10% or more of accounts receivable as of September 30, 2013 and December 31, 2013 as follows:

 

 

 September 30, 2013     December 31, 2013  

Shenzhen DRN Battery Co., Ltd.

$

 5,787,787     11.6%   $  **     **  

Beijing Beny Wave Technology Ltd.

 

 6,811,680     13.7%     6,177,310     14. 1%  

** Comprised less than 10% of accounts receivable as of December 31, 2013.

(b)

Credit Risk

Financial instruments that potentially subject the Company to a significant concentration of credit risk consist primarily of cash and cash equivalents and pledged deposits. As of September 30, 2013 and December 31, 2013, substantially all of the Company’s cash and cash equivalents and pledged deposits were held by major financial institutions located in the PRC, which management believes are of high credit quality.