STERIS CORPORATION   

02 September 2015

For immediate release

THIS ANNOUNCEMENT IS NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION,

IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY IN OR INTO OR FROM ANY

 JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION

 OF THE RELEVANT LAWS OF THAT JURISDICTION

Recommended combination

of

STERIS CORPORATION

and

Synergy Health plc

Rule 2.10 Announcement

In accordance with Rule 2.10 of the City Code on Takeovers and Mergers (the "Code"), STERIS Corporation confirms that it has 59,926,743 shares of common stock in issue and admitted to trading on the New York Stock Exchange under the international Securities Identification Number (ISIN) US 8591521005, excluding shares of common stock held in treasury.

Enquiries:

STERIS                                       

Investor Contact: Julie Winter, Director, Investor Relations                        Tel:  +1 440 392 7245

Media Contact:

Stephen Norton, Senior Director, Corporate Communications                   Tel: +1 440 392 7482

Lazard & Co., Limited (Financial Adviser to STERIS and New STERIS)

Stephen Sands                                                                                                                  Tel:  +44 20 7187 2000
Nicholas Shott

Al Garner                                                                                                                             Tel: +1 212 632 6000

Andrew Dickinson                                                                                                           Tel: +1 415 623 5000

Lazard & Co., Limited, which is authorised and regulated in the United Kingdom by the Financial Conduct Authority, is acting exclusively as financial adviser to STERIS and New STERIS and no one else in connection with the Combination and will not be responsible to anyone other than STERIS and New STERIS for providing the protections afforded to clients of Lazard & Co., Limited nor for providing advice in relation to the Combination or any other matters referred to in this Announcement. Neither Lazard & Co., Limited nor any of its affiliates owes or accepts any duty, liability or responsibility whatsoever (whether direct or indirect, whether in contract, in tort, under statute or otherwise) to any person who is not a client of Lazard & Co., Limited in connection with this Announcement, any statement contained herein, the Combination or otherwise.

Disclosure requirements of the Code

Under Rule 8.3(a) of the Code, any person who is interested in 1% or more of any class of relevant securities of an offeree company or of any securities exchange offeror (being any offeror other than an offeror in respect of which it has been announced that its offer is, or is likely  to  be,  solely  in  cash)  must  make  an  Opening  Position  Disclosure  following  the commencement of the offer period and, if later, following the announcement in which any securities exchange offeror is first identified.  An Opening Position Disclosure must contain details of the person's interests and short positions in, and rights to subscribe for, any relevant securities of each of (i) the offeree company and (ii) any securities exchange offeror(s).  An Opening Position Disclosure by a person to whom Rule 8.3(a) applies must be made  by no  later  than  3.30 pm  (London time)  on  the  10th  business  day following the commencement of the offer period and, if appropriate, by no later than 3.30 pm (London time) on the 10th business day following the announcement in which any securities exchange offeror is first identified.  Relevant persons who deal in the relevant securities of the offeree company or of a securities exchange offeror prior to the deadline for making an Opening Position Disclosure must instead make a Dealing Disclosure.

Under Rule 8.3(b) of the Code, any person who is, or becomes, interested in 1% or more of any class of relevant securities of the offeree company or of any securities exchange offeror must make a Dealing Disclosure if the person deals in any relevant securities of the offeree company or of any securities exchange offeror.  A Dealing Disclosure must contain details of the dealing concerned and of the person's interests and short positions in, and rights to subscribe for, any relevant securities of each of (i) the offeree company and (ii) any securities exchange offeror, save to the extent that these details have previously been disclosed under Rule 8.  A Dealing Disclosure by a person to whom Rule 8.3(b) applies must be made by no later than 3.30 pm (London time) on the business day following the date of the relevant dealing.

If two or more persons act together pursuant to an agreement or understanding, whether formal or  informal, to  acquire or  control an  interest in  relevant securities of  an  offeree company or a securities exchange offeror, they will be deemed to be a single person for the purpose of Rule 8.3.

Opening Position Disclosures must also be made by the offeree company and by any offeror and Dealing Disclosures must also be made by the offeree company, by any offeror and by any persons acting in concert with any of them (see Rules 8.1, 8.2 and 8.4).

Details of the offeree and offeror companies in respect of whose relevant securities Opening Position Disclosures and Dealing Disclosures must be made can be found in the Disclosure Table on the Takeover Panel's website at  www.thetakeoverpanel.org.uk, including details of the number of relevant securities in issue, when the offer period commenced and when any offeror was first identified.  You should contact the Panel's Market Surveillance Unit on +44 (0)20 7638 0129 if you are in any doubt as to whether you are required to make an Opening Position Disclosure or a Dealing Disclosure.