Comba Telecom Systems Holdings Limited — Earnings Release 2009

Jul 23, 2009

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

COMBA TELECOM SYSTEMS HOLDINGS LIMITED 京信通信系統控股有限公司 (incorporated in the Cayman Islands with limited liability)

(Stock Code : 2342)

POSITIVE PROFIT ALERT

This announcement is made in accordance with Rule 13.09(1) of the Listing Rules.

The Board announces that based on its preliminary review of the relevant unaudited consolidated fi nancial statements of the Group for the six months ended 30 June 2009, it is expected that the Net Profi ts of the Group for the Reporting Period will represent a signifi cant increase when compared with the unaudited consolidated net profi ts of the Group for the corresponding period last year.

It is preliminarily expected that the revenue of the Group for the Reporting Period will increase over 80% when compared with the corresponding period last year. In addition, the Net Profi ts of the Group for the Reporting Period may increase at a higher rate than the growth of the revenue, as a result of the economy of scale and costs control measures of the Group.

Shareholders and investors of the Company are advised to exercise caution when dealing in the securities of the Company.

This announcement is made in accordance with Rule 13.09(1) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules” ).

The board (the “Board” ) of directors (the “Directors” ) of Comba Telecom Systems Holdings Limited (the “Company” ) hereby announces that based on its preliminary review of the relevant unaudited consolidated fi nancial statements of the Company and its subsidiaries (the “Group” ) for the six months ended 30 June 2009 (the “Reporting Period” ), it is expected that the unaudited consolidated net profi t (the “Net Profi ts” ) attributable to the shareholders after taxation and exceptional items of the Group for the Reporting Period will represent a signifi cant increase when compared with the unaudited consolidated net profi ts of the Group for the corresponding period last year.

Due to the completion of the re-structuring of the PRC’s telecommunications industry in the 4th quarter of 2008 and the issuance of third generation (3G) mobile licenses commenced in the 1st quarter of 2009, there has been a strong growing demand of the mobile network communications equipment. The Company has been able to benefi t from the expansion of mobile network facilities

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by different mobile telecommunications operators in the PRC and the Company has a series of third generation (3G) communication equipment products that are available for the market. It is preliminarily expected that the revenue of the Group for the Reporting Period will increase over 80% when compared with the corresponding period last year. In addition, the Net Profi ts of the Group for the Reporting Period may increase at a higher rate than the growth of the revenue, as a result of the economy of scale and costs control measures of the Group.

This positive profi t alert announcement is only based on the unaudited consolidated management accounts of the Group for the Reporting Period, which is not reviewed by the Company’s auditors yet and may be subject to adjustments. The Company is still fi nalizing the fi gures in the unaudited consolidated fi nancial statements for the Reporting Period. Shareholders of the Company and investors are advised to read carefully the interim results announcement for the Reporting Period of the Company, which is expected to be published in early September 2009.

Shareholders and potential investors are advised to exercise caution when dealing in the securities of the Company.

By order of the Board COMBA TELECOM SYSTEMS HOLDINGS LIMITED Tong Chak Wai, Wilson Executive Director

Hong Kong, 23 July 2009

As at the date of this announcement, the Board comprises the following executive directors: Mr. FOK Tung Ling, Mr. ZHANG Yue Jun, Mr. TONG Chak Wai, Wilson, Mr. WU Jiang Cheng, Mr. YAN Ji Ci, Mr. ZHENG Guo Bao and Mr. YEUNG Pui Sang, Simon; and the following independent non-executive directors: Mr. YAO Yan, Mr. LAU Siu Ki, Kevin and Mr. LIU Cai.

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