ADVISORY, May 22, 2008 (PRIME NEWSWIRE) --



 What:
 Mr. Jianghuai Lin, Chairman and CEO of China Information Security
 Technology, Inc. (CPBY), will preside over the closing bell.

 Where:
 NASDAQ MarketSite - 4 Times Square - 43rd & Broadway - Broadcast Studio

 When:
 Friday, May 23, 2008 at 4:00 p.m. ET

 Contacts:
 Mr. Michael Lin
 Vice President, Investor Relations
 China Information Security Technology, Inc.
 1-949-743-0868
 mlin@chinacpby.com

 Mabel Zhang
 CCG Elite Investor Relations
 310.477.9800; mobile - 310.882.1130
 mabel.zhang@ccgir.com

 NASDAQ MarketSite:
 Jolene Libretto; 646.441.5220; mobile - 347.219.9539
 Jolene.Libretto@nasdaqomx.com

Feed Information:

The Closing Bell is available from 3:50 p.m. to 4:05 p.m. on uplink IA-6 C-band/transponder 17. The downlink frequency is 4040 Vertical; Audio 6.2-6.8. The feed can also be found on Waterfront fiber 1623. If you have any questions, please contact Jolene Libretto at (646) 441-5220.

Radio Feed:

An audio transmission of the Closing Bell is also available from 3:50 p.m. to 4:05 p.m. on uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. The feed can be found on Waterfront fiber 1623 as well.

Webcast:

A live Webcast of the NASDAQ Closing Bell will be available at: http://www.nasdaq.com/about/marketsitetowervideo.asx

Photos:

To obtain a hi-resolution photograph of the Market Close, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market close of your choice.

About China Information Security Technology, Inc. (CPBY):

Through its wholly-owned Chinese subsidiary, China Information Security is focused on the development and implementation of large scale, high-tech information security and 3S (Geographic Information Systems -- GIS, Global Positioning Systems -- GPS and Remote Sensing -- RS) related projects. The Company provides a broad portfolio of fully integrated solutions and services, including Information Security (First Responder Coordination Platform, Intelligent Border Control System and Residence Card Information Management System), 3S (GIS, GPS and RS), and Product Sales and Services. Through its exclusive contractual arrangement with iASPEC Software Company Limited (iASPEC), China Information Security has the licenses to numerous registered and copyrighted software applications in China. In addition, iASPEC is considered the Company's variable interest entity, and its financial data and information is consolidated into the Company's accounts. To learn more about the Company, please visit the corporate website at www.chinacpby.com.