China GrenTech (GRRF) SC 13D China GrenTech / Guoren Industrial Developments ownership change

Exhibit 7.01

Joint Filing Agreement

In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing of a statement on Schedule 13D (including any and all amendments thereto) with respect to the ordinary shares, par value US$0.00002 each, of China GrenTech Corporation Limited, a Cayman Islands company, and to the filing of this agreement as an exhibit thereto. This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

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Signature Page

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of January 18, 2012.

Guoren Industrial Developments Limited
By:	/s/ Yingjie Gao
Name:	Yingjie Gao
Title:	Sole Director
Heng Xing Yue Investments Limited
By:	/s/ Yingjie Gao
Name:	Yingjie Gao
Title:	Sole Director
Yingjie Gao
By:	/s/ Yingjie Gao
Ce Lue Investments Limited
By:	/s/ Yingjie Gao
Name:	Yingjie Gao
Title:	Sole Director
Well Sino Enterprises Limited
By:	/s/ Rong Yu
Name:	Rong Yu
Title:	Sole Director
Rong Yu
By:	/s/ Rong Yu
Leakey Investments Limited
By:	/s/ Yin Huang
Name:	Yin Huang
Title:	Sole Director
Yin Huang
By:	/s/ Yin Huang
Talenthome Management Limited
By:	/s/ Yingjie Gao
Name:	Yingjie Gao
Title:	Sole Director