Important information

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible)ⁱ

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

Gore Street Energy Storage Fund plc

1b. Please indicate if the issuer is a non-UK issuer  (please mark with an "X" if appropriate)

Non-UK issuer

2. Reason for the notification (please mark the appropriate box or boxes with an "X")

An acquisition or disposal of voting rights

An acquisition or disposal of financial instruments

An event changing the breakdown of voting rights

X

Other (please specify)ⁱⁱⁱ:

3. Details of person subject to the notification obligation^iv

Name

National Treasury Management Agency ("NTMA")

Ireland Strategic Investment Fund ("ISIF")

Minister for Finance of Ireland

City and country of registered office (if applicable)

Treasury Dock, North Wall Quay, Dublin 1, D01A9T8, Ireland

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

Name

National Treasury Management Agency, as controller and manager of the Ireland Strategic Investment Fund

City and country of registered office (if applicable)

5. Date on which the threshold was crossed or reached^vi:

04/10/2021

6. Date on which issuer notified (DD/MM/YYYY):

04/10/2021

7. Total positions of person(s) subject to the notification obligation

% of voting rights attached to shares (total of 8. A)

% of voting rights through financial instruments
(total of 8.B 1 + 8.B 2)

Total of both in % (8.A + 8.B)

Total number of voting rights of issuer^vii

Resulting situation on the date on which threshold was crossed or reached

3.4%

0%

3.4%

345,035,842

Position of previous notification (if

applicable)

4.25%

0%

4.25%

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached^viii

A: Voting rights attached to shares

Class/type of
shares

ISIN code (if possible)

Number of voting rights^ix

% of voting rights

Direct

(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect

(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

Direct

(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect

(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

Ordinary Shares (GB00BG0P0V73)

NIL

NIL

3.4%

SUBTOTAL 8. A

11,730,910

3.4%

B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1 (a))

Type of financial instrument

Expiration
date^x

Exercise/
Conversion Period^xi

Number of voting rights that may be acquired if the instrument is

exercised/converted.

% of voting rights

SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b))

Type of financial instrument

Expiration
date^x

Exercise/
Conversion Period ^xi

Physical or cash

settlement^xii

Number of voting rights

% of voting rights

N/A

N/A

N/A

N/A

N/A

N/A

SUBTOTAL 8.B.2

N/A

N/A

9. Information in relation to the person subject to the notification obligation (please mark the

applicable box with an "X")

Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer^xiii

Full chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held starting with the ultimate controlling natural person or legal entity^xiv (please add additional rows as necessary)

X

Name^xv

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial instruments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

National Treasury Management Agency, as controller and manager of the Ireland Strategic Investment Fund

3.4%

NIL

3.4%

10. In case of proxy voting, please identify:

Name of the proxy holder

N/A

The number and % of voting rights held

The date until which the voting rights will be held

11. Additional information^xvi

Shares of Gore Street Energy Storage Fund plc owned indirectly by the NTMA, as controller and manager of the ISIF, are held in the name of The Bank of New York Nominees Ltd

Place of completion

Dublin, Ireland

Date of completion

04 October 2021