Notification of Major Interest in Shares

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

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

GCP Infrastructure Investments Ltd

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

An acquisition or disposal of voting rights

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

X

Other (please specify):

3. Full name of person(s) subject to the notification obligation:

Bank of Montreal

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

See box 9 below

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

01st December 2016

6. Date on which issuer notified:

08th December 2016

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

5%

8. Notified details:

A: Voting rights attached to shares

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

Direct

Direct

Indirect

Direct

Indirect

Ordinary

JE00B6173J15

29,372,337

29,372,337

35,734,952

-

35,734,952

-

4.87%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/ConversionPeriod

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

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Exerciseprice

Expirationdate

Exercise/Conversionperiod

Number of votingrights instrumentrefers to

% of voting rights

-

Nominal

Delta

-

-

Total (A+B+C)

Number of voting rights

Percentage of voting rights

35,734,952

4.87%

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

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.

Proxy Voting:

10. Name of proxy holder:

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

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

13. Additional information:

Based on Total Voting Rights of 733,111,481.

14 Contact name:

Ding Wang

15. Contact telephone name:

020 7011 5180