Joint Filing Agreement

EXHIBIT 99.2

Joint Filing Agreement

     In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, the undersigned hereby agree to the joint filing of a statement on Schedule 13D and/or 13G (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.

     IN WITNESS WHEREOF, the undersigned hereby execute this agreement as of the 8th day of September 2008.

Guoren Industrial Developments Limited

/s/ Xxxxxxx Xxx

Name: Xxxxxxx Xxx
Title: Sole Director

Xxxxxxx Xxx

/s/ Xxxxxxx Xxx

Xx Xxx Investments Limited

/s/ Xxxxxxx Xxx

Name: Xxxxxxx Xxx
Title: Sole Director

Target Growth Holdings Limited

/s/ Xxxxxxx Xxx           /s/ Xxxx Sim

Name: Bukit Merah Limited by its authorized signatories, Xxxxxxx Xxx and Xxxx Sim
Title: Corporate Directors

The GRRF Trust

/s/ Xxxxxxx Xxx           /s/ Xxxx Sim

Name: Credit Suisse Trust Limited by its authorized signatories, Xxxxxxx Xxx and Xxxx Sim
Title: Trustee

Credit Suisse Trust Limited

/s/ Xxxxxxx Xxx           /s/ Xxxx Sim

Name: Xxxxxxx Xxx and Xxxx Sim
Title: Authorized signatories