Holding(s) in Company

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

McKay Securities PLC

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

An acquisition or disposal of voting rights

ü

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 the notification obligation: iii

Bank of Montreal

4. Full name of shareholder(s)

(if different from 3.): iv

See Box 9 below

5. Date of the transaction and date on which the threshold is crossed or reached: v

27th April 2017

6. Date on which issuer notified:

28th April 2017

7. Threshold(s) that is/are crossed or

reached: vi, vii

11%

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

Ordinary

GB0005522007

9,524,668

9,524,668

10,347,209

-

10,347,209

-

11.03%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/ConversionPeriod 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

Exerciseprice

Expirationdate xvii

Exercise/Conversionperiod xviii

Number of votingrights instrumentrefers to

% of voting rights xix, xx

N/A

NA

N/A

N/A

N/A

Nominal

Delta

 N/A

N/A

Total (A+B+C)

Number of voting rights

Percentage of voting rights

 10,347,209

11.03%

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

Bank of Montreal is the parent company of the BMO Financial Group. The following controlled undertakings each have the right to exercise voting rights in agency capacity on behalf of underlying clients of 3% or more of the issuer. All controlled undertaking(s) as detailed are wholly owned subsidiaries of the Bank of Montreal. Controlled undertakings can exercise voting rights independently of each other.

Client No. of voting rights % of total voting rights

Thames River Capital LLP 8,033,878 8.56%

Proxy Voting:

10. Name of the proxy holder:

 N/A

11. Number of voting rights proxy holder will cease to hold:

 N/A

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

 N/A

13. Additional information:

Based on Total Voting Rights 93,808,450

14. Contact name:

Joanne McKeown

Company Secretary

15. Contact telephone number:

 01189 502333