Holding(s) in Company

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

Maintel Holdings PLC

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

An acquisition or disposal of voting rights

Yes

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

No

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

No

An event changing the breakdown of voting rights

No

Other (please specify):

No

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

 ALLIANCE TRUST PLC

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

ALLIANCE TRUST SUSTAINABLE FUTURE UK GROWTH FUND (A SUB-FUND OF THE ALLIANCE TRUST SUSTAINABLE FUTURE ICVC)

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

10 May 2013

6. Date on which issuer notified:

13 May 2013

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

3% of voting rights.

8. Notified details:

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

N/A

N/A

N/A

N/A

N/A

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

N/A

N/A

N/A

N/A

N/A

Nominal

Delta

N/A

N/A

Total (A+B+C)

Number of voting rights

Percentage of voting rights

Less than 3%

Less than 3%

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

Alliance Trust PLC is the parent of Alliance Trust Asset Management Limited who is the appointed Authorised Corporate Director for the Alliance Trust Sustainable Future ICVC. These holdings were held within one of the constituent funds of this ICVC umbrella as listed in 4 above.

Proxy Voting:

10. Name of the proxy holder:

N/A

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

N/A

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

N/A

13. Additional information:

14. Contact name:

Mr Ian Anderson, Alliance Trust PLC

15. Contact telephone number:

01382 321238