11 January 2012

Synchronica plc

("Synchronica" or "the Company")

RULE 2.10 ANNOUNCEMENT (Warrants)

In accordance with Rule 2.10 of the City Code on Takeovers and Mergers ("the Code"), Synchronica plc confirms that at the date of this announcement, it has 158,707,089Ordinary Shares of 15p eachin issue and admitted to trading on the London Stock Exchange under the UK ISIN code GB00B5BPX877.

In accordance with Rule 2.10 of the City Code on Takeovers and Mergers ("the Code"), Synchronica plc confirms that at the date of this announcement, it has the following warrants, in respect of Ordinary Shares of 15p each,in issue which are transferrable but which are not admitted to trading on the AIM market of the London Stock Exchange or any other recognised stock exchange:

Number of Warrants

Date of Issue

Exercise Expiry Date

Exercise Price

16,739,141

21 Sept 2010

20 Sept 2013

28.94p p/share

35,210,349

29 July 2011

28 July 2014

16p

p/share

16,701,000

15 July 2011

17 November 2014

25 CAN cents

p/share

This announcement is available on the Company's website ().

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 must make an Opening Position Disclosure following the commencement of the offer period. 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 the offeree company. 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. Relevant persons who deal in the relevant securities of the offeree company 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 must make a Dealing Disclosure if the person deals in any relevant securities of the offeree company. 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 the offeree company, 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, 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 , including details of the number of relevant securities in issue, when the offer period commenced and when any offeror was first identified. If you are in any doubt as to whether you are required to make an Opening Position Disclosure or a Dealing Disclosure, you should contact the Panel's Market Surveillance Unit on +44 20 7638 0129.

For corporate information, please contact:

Synchronica plc

+44 (0) 1892 552 720

Chief Executive Officer

Angus Dent

Northland Capital Partners

+44 (0) 207 796 8800

Nominated Advisor

Corporate Broker

Shane Gallwey;

Rod Venables

Katie Shelton

Walbrook PR Ltd

+44 (0) 20 7933 8780

Media and Analyst Enquiries, UK

Paul McManus

paul.mcmanus@walbrookpr.com

TMX Equicom

+1 416 815 0700 Ext 290

Media and Analyst Enquiries, North America

Craig MacPhail

cmacphail@equicomgroup.com

About Synchronica

Synchronica plc is a leading developer of standards-based, next-generation mobile messaging solutions for mobile operators and device manufacturers. The Company's flagship product - Synchronica Mobile Gateway - provides pre-RCS push email, synchronisation, instant messaging (IM), and social networking services to any mobile phone currently in use. Synchronica's patented transcoding technology uses advanced streaming to download email attachments and dramatically reduces the consumption of wholesale network bandwidth by as much as 90 percent.

Synchronica's white-labelled products are licensed by more than 90 mobile operators and eight device manufacturers from emerging and developed markets, delivering mass market messaging services across the entire customer base, providing competitive advantage, diversifying revenues, and reducing churn.

Synchronica is headquartered in the United Kingdom and has a regional presence in Canada, as well as the USA, Hong Kong, Spain, and Dubai. Synchronica also operates dedicated development centres in Germany and the Philippines. A public company, Synchronica is traded on the AIM list of the London Stock Exchange (SYNC) and the Venture Exchange of the Toronto Stock Exchange (SYN). For further information, please visit

In accordance with Rule 2.10 of the City Code on Takeovers and Mergers ("the Code"), Synchronica plc confirms that at the date of this announcement, it has 158,707,089Ordinary Shares of 15p eachin issue and admitted to trading on the London Stock Exchange under the UK ISIN code GB00B5BPX877.

This announcement is available on the Company's website (www.synchronica.com).

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