ShengdaTech, Inc. (SDTH) Chairman, President and CEO to Ring the NASDAQ Stock Market Opening Bell


ADVISORY, June 20, 2007 (PRIME NEWSWIRE) --



 What:
 Mr. Xiangzhi Chen, Chairman, President and CEO of ShengdaTech,
 Inc. (SDTH) will preside over the opening bell.

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

 When:
 Thursday, June 21, 2007 at 9:30 a.m. ET

 Contacts:
 Mabel Bei Zhang
 Media Specialist
 (310) 477-9800, ext.128; Mabel.Zhang@CCGIR.com

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

Feed Information:

The opening bell is available from 9:20 a.m. to 9:35 a.m. on uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. 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 opening bell is also available from 9:20 a.m. to 9:35 a.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 Opening Bell will be available at: http://www.nasdaq.com/reference/marketsite_about.stm.

Photos:

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

About ShengdaTech, Inc. (SDTH):

ShengdaTech is engaged in the business of manufacturing, marketing and selling a variety of nano-precipitated calcium carbonate ("NPCC") products and coal-based chemicals for use in various applications. The Company converts limestone into NPCC using its proprietary technology. The unique chemical and physical attributes make NPCC a valuable ingredient in tires, paints, polyvinyl chloride ("PVC") building materials and other products. NPCC enhances the durability of many products by increased strength, heat resistance, and dimension stabilization. The Company is also engaged in the manufacture and sale of coal-based chemical products namely ammonium bicarbonate, liquid ammonia, melamine and methanol. The Company markets and sells its coal-based products mainly for chemical fertilizers and raw materials in the production of organic and inorganic chemical products, including formaldehyde and pesticides.