Exhibit 99.1

Company Contact:

Mr. Ryan Hua

Vice President Operations

Cleantech Solutions International, Inc.

Email: ryanhua@cleantechsolutionsinternational.com

Web: www.cleantechsolutionsinternational.com

Investor Relations Contact:

Ms. Elaine Ketchmere

CCG Investor Relations

Tel: +1-310-954-1345

Email: elaine.ketchmere@ccgir.com

Web: www.ccgirasia.com

Cleantech Solutions Comments on Unusual Market Activity

WUXI, Jiangsu, China, April 5, 2012 - Cleantech Solutions International, Inc. ("Cleantech Solutions" or "the Company") (NASDAQ: CLNT), a manufacturer of metal components and assemblies, primarily used in the wind power, solar and other clean technology industries, today announced that the Company is not in possession of any material information that has not been disclosed to the public in reports filed with the U.S. Securities and Exchange Commission that could account for the unusual trading activity in its common stock.

About Cleantech Solutions International

Cleantech Solutions is a manufacturer of metal components and assemblies, primarily used in clean technology industries. The Company supplies forging products, fabricated products and machining services to a range of clean technology customers, primarily in the wind power sector. Cleantech Solutions is committed to achieving long-term growth through ongoing technological improvement, capacity expansion, and the development of a strong customer base. The Company's website is www.cleantechsolutionsinternational.com. Any information on the Company's website or any other website is not a part of this press release.

Safe Harbor Statement

This release contains certain “forward-looking statements” relating to the business of the Company and its subsidiary and affiliated companies. These forward looking statements are often identified by the use of forward-looking terminology such as “believes,” “expects” or similar expressions. Such forward looking statements involve known and unknown risks and uncertainties that may cause actual results to be materially different from those described herein as anticipated, believed, estimated or expected. Investors should not place undue reliance on these forward-looking statements, which speak only as of the date of this press release. The Company’s actual results could differ materially from those anticipated in these forward-looking statements as a result of a variety of factors, including those discussed in the Company’s periodic reports that are filed with the Securities and Exchange Commission and available on its website, including factors described in “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Form 10-K for the year ended December 31, 2011. All forward-looking statements attributable to the Company or to persons acting on its behalf are expressly qualified in their entirety by these factors other than as required under the securities laws. The Company does not assume a duty to update these forward-looking statements.

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