Chardan North China Acquisition Corp. to Present at Roth Capital Partners 19th Annual OC Conference.

SAN DIEGO & BEIJING -- Chardan North China Acquisition Corp. (OTCBB: CNCA, CNCAU, CNCAW) announced today that it is scheduled to present at the Roth Capital Partners 19th Annual OC Conference on Tuesday, February 20, 2007 at 2:00 PM Eastern Time. The conference is being held from February 19-22, 2007 at The Ritz Carlton Laguna Nigel, CA.

The presentation will also be broadcast live and replayed over the Internet and can be accessed at http://www.wsw.com/webcast/roth9/cnca.ob/. To listen to the live broadcast, go to the website at least 15 minutes early to register, download and install any necessary audio software.

Chardan North China Acquisition Corp. is a blank check company incorporated in March 2005 to acquire an operating business based north of the Yangtze River in the People's Republic of China ("PRC"). On February 2, 2006, the Company announced a definitive stock purchase agreement pursuant to which it will acquire a controlling interest in Beijing HollySys Company, Limited and Hangzhou HollySys Automation, Limited (collectively referred to as "HollySys"). HollySys has become one of the leading automation systems providers in the PRC, developing a number of core technologies and completing over 3000 projects utilizing a wide array of automation products.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold, nor may offers to buy be accepted, prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

In connection with the pending transaction, HLS Systems International Ltd. ("HLS Systems") has filed with the SEC a Registration Statement on Form S-4 containing a Proxy Statement/Prospectus for the stockholders of Chardan North. The stockholders of Chardan North are urged to read the Registration Statement and the Proxy Statement/Prospectus, when it is available, as well as all other relevant documents filed or to be filed with the SEC, because they will contain important information about HollySys, HLS Systems, Chardan North and the proposed transaction. The final Proxy Statement/Prospectus will be mailed to stockholders of Chardan North after the Registration Statement is declared effective by the SEC. Chardan North stockholders will be able to obtain the Registration Statement, the Proxy Statement/Prospectus and any other relevant filed documents for free at the SEC's website (www.sec.gov). These documents can also be obtained for free from Chardan North by directing a request to Lori Johnson c/o Chardan Capital, 625 Broadway, Suite 1111, San Diego, CA 92101.

HLS Systems, Chardan North and their respective directors and officers may be deemed to be participants in the solicitation of approvals from Chardan North stockholders in respect of the proposed transaction. Information regarding Chardan North's participants will be available in the Proxy Statement/Prospectus. Additional information regarding the interests of such participants will be included in the Registration Statement containing the Proxy Statement/Prospectus.