TR-1: Notification of major interest in shares

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

Smart Metering Systems Plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to thenotification obligation: iii

Abdiel Capital Management, LLC

Abdiel Capital Advisors, LLC

Colin Moran

4. Full name of shareholder(s)  (if different from 3.):iv

Abdiel Capital, LP

Abdiel Qualified Master Fund, LP

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

2 August 2013

6. Date on which issuer notified:

7 August 2013

7. Threshold(s) that is/are crossed orreached: vi, vii

Below 3%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

2,463,536

2,463,536

2,513,536

3.016%

Ordinary shares

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

2,513,536

3.016%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

Abdiel Capital LP and Abdiel Qualified Master Fund LP (as listed in Section 4 of this form) directly hold 0.268% and 2.748% in Smart Metering Systems Plc, respectively.

The General Partner to each of these funds is Abdiel Capital management, LLC.

The General Partner has appointed Abdiel Capital Advisors, LLC as the investment manager of the funds. Colin Moran is the controller of Abdiel Capital Advisors, LLC.

Accordingly, Abdiel Capital Management, LLC, Abdiel Capital Advisors, LLC and Colin Moran are each deemed to indirectly hold 3.016% in the voting rights of Smart Metering Systems Plc (this form is submitted on behalf of these entities/person listed).

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will ceaseto hold:

12. Date on which proxy holder will cease to holdvoting rights:

13. Additional information:

14. Contact name:

15. Contact telephone number: