Ryan & Maniskas, LLP ( www.rmclasslaw.com/cases/dnex) is investigating potential claims against the board of directors of Dionex Corporation ("Dionex" or the "Company") (NASDAQ: DNEX) concerning possible breaches of fiduciary duty and other violations of law related to the Company’s efforts to sell Dionex to Thermo Fisher Scientific in a transaction valued at approximately $2.1 billion.

Our investigation concerns possible breaches of fiduciary duty and other violations of law related to approval of the transaction by Company’s board of directors; in particular, whether the Company undertook a fair process to obtain fair consideration for all shareholders of Dionex. For more information regarding our investigation, please contact Ryan & Maniskas, LLP (Richard A. Maniskas, Esquire) toll-free at (877) 316-3218 or by email at rmaniskas@rmclasslaw.com or visit: www.rmclasslaw.com/cases/dnex.

Under the proposed agreement, Thermo Fisher Scientific will commence a tender offer to acquire all of the outstanding shares of Dionex common stock for $118.50 per share in cash.

If you own shares of Dionex and would like to learn more about these claims or if you wish to discuss these matters and have any questions concerning this announcement or your rights, contact Richard A. Maniskas, Esquire toll-free at (877) 316-3218 or to sign up online, visit: www.rmclasslaw.com/cases/dnex. You may also email Mr. Maniskas at rmaniskas@rmclasslaw.com. For more information about class action cases in general, please visit our website: www.rmclasslaw.com.

Ryan & Maniskas, LLP is a national shareholder litigation firm. Ryan & Maniskas, LLP is devoted to protecting the interests of individual and institutional investors in shareholder actions in state and federal courts nationwide.

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