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

SSE Plc

GB0007908733

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

n/a

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

n/a

An event changing the breakdown of voting rights

n/a

Other (please specify):

n/a

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

UBS Investment Bank

UBS Group AG

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

UBS AG London Branch

UBS Limited

UBS Securities LLC

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

21 January 2016

6. Date on which issuer notified:

25 January 2016

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

4% Section A

5% Section (A+B+C)

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 xi

Indirect xii

Direct

Indirect

GB0007908733

Below Notifiable Threshold

Below Notifiable Threshold

-

-

49,558,763

-

4.93%

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

Equity Options

16.02.2016

-

39,567

0.00%

Equity Options

19.02.2016

-

1,961,691

0.19%

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

Equity Swaps

-

From 14.03.2016

to

24.12.2018

-

443,134

Nominal

Delta

-

0.04%

Total (A+B+C)

Number of voting rights

Percentage of voting rights

52,003,155

5.17%

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

UBS Group AG is a group holding company for UBS Investment Bank business. Voting rights are held through its controlled undertakings as set out below.

UBS AG:

- directly through its branches: UBS AG London Branch - 49,519,193 (4.92%); and

- indirectly through its subsidiaries: UBS Limited - 149,182 (0.02%)

- indirectly through its subsidiaries: UBS Securities LLC - 2,334,780 (0.23%)

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:

Konstantina Georgaki / Zuzana Görögová

15. Contact telephone number:

+41 44 239 4071