Spousal Consents, dated January 25, 2016

Spousal Consent

The undersigned, Liu Qing, a People’s Republic of China (“PRC”) citizen with PRC ID Card No.: 31010419710314162x, is the lawful spouse of Wu Bing, a PRC citizen with PRC ID Card No.: 310104196806292016. I hereby unconditionally and irrevocably agree to the execution of the following documents by Wu Bing on January 25, 2016, and the disposal of the equity interests of Beijing Sino Top Scope Technology Co., Ltd. (“Company”) held by Wu Bing and registered in his name according to the following documents:

(collectively, “Transaction Documents”).

I hereby undertake not to make any assertions in connection with the equity interests of the Company which are held by Wu Bing. I hereby further confirm that Wu Bing can perform the Transaction Documents and further amend or terminate the Transaction Documents absent authorization or consent from me.

I hereby undertake to execute all necessary documents and take all necessary actions to ensure appropriate performance of the Transaction Documents (as amended from time to time) upon the WFOE’s request.

I hereby agree and undertake that if I obtain any equity interests of the Company which are held by Wu Bing for any reasons, I shall be bound by the Transaction Documents, as well as the Technical Services Agreement entered into between the WFOE and the Company as of January 25, 2016 and comply with the obligations thereunder as a shareholder of the Company. For this purpose, upon the WFOE’s request, I shall sign a series of written documents in substantially the same format and content as the Transaction Documents, as well as the Technical Services Agreement.

Spousal Consent

The undersigned, Liang Wen Gang, a People’s Republic of China (“PRC”) citizen with PRC ID Card No.: 150102196901233038, is the lawful spouse of Zhu Yun, a PRC citizen with PRC ID Card No.: 630104197402260543. I hereby unconditionally and irrevocably agree to the execution of the following documents by Zhu Yun on January 25, 2016, and the disposal of the equity interests of Beijing Sino Top Scope Technology Co., Ltd. (“Company”) held by Zhu Yun and registered in his name according to the following documents:

(collectively, “Transaction Documents”).

I hereby undertake not to make any assertions in connection with the equity interests of the Company which are held by Zhu Yun. I hereby further confirm that Zhu Yun can perform the Transaction Documents and further amend or terminate the Transaction Documents absent authorization or consent from me.

I hereby undertake to execute all necessary documents and take all necessary actions to ensure appropriate performance of the Transaction Documents (as amended from time to time) upon the WFOE’s request.

I hereby agree and undertake that if I obtain any equity interests of the Company which are held by Zhu Yun for any reasons, I shall be bound by the Transaction Documents, as well as the Technical Services Agreement entered into between the WFOE and the Company as of January 24, 2016 and comply with the obligations thereunder as a shareholder of the Company. For this purpose, upon the WFOE’s request, I shall sign a series of written documents in substantially the same format and content as the Transaction Documents, as well as the Technical Services Agreement.