REN Redes Energeticas Nacionais : Loss of qualified shareholding from EDP

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

REN - Redes Energéticas Nacionais, S.G.P.S., S.A.

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

[x] An acquisition or disposal of voting rights

[ ] An acquisition or disposal of financial instruments [ ] An event changing the breakdown of voting rights [ ] Other (please specify)iii:

3. Details of person subject to the notification obligationiv :

Name: EDP - Energias de Portugal, S.A.

City and country of registered office (if applicable): Lisboa - Portugal

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

5. Date on which the threshold was crossed or reachedvi:

28 June 2017

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

% of voting rights at- tached to shares (to- tal of 7.A)

% of voting rights through financial instru- ments

(total of 7.B.1 + 7.B.2)

Total of both in % (7.A + 7.B)

Total number of voting rights of is- suervii

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

0%

0%

0%

534,000,000

Position of previous notification (if appli- cable)

3.5%

0%

3.5%

7. Notified details of the resulting situation on the date on which the threshold was crossed or reachedviii:

A: Voting rights attached to shares

Class/type of shares

ISIN code (if possi- ble)

Number of voting rightsix

% of voting rights

Direct

(Art 9 of Directive 2004/109/EC)

Indirect

(Art 10 of Directive 2004/109/EC)

Direct

(Art 9 of Directive 2004/109/EC)

Indirect

(Art 10 of Directive 2004/109/EC)

PTREL0AM0008

0

0

0%

0%

SUBTOTAL A

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

Type of financial in-

Expiration

Exercise/

Number of voting rights

% of voting rights

that may be acquired if

strument

datex

Conversion Periodxi

the instrument is exer-

cised/ converted.

SUBTOTAL B.1

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

Type of financial instrument

Expiration datex

Exercise/ Conversion Pe- riod xi

Physical or cash settlementxii

Number of voting rights

% of voting rights

SUBTOTAL B.2

8. Information in relation to the person subject to the notification obligation (please tick the applica- ble box):

[x] Person subject to the notification obligation is not controlled by any natural person or legal en- tity 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 le- gal entityxiv:

Namexv

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

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

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