Form 8.3 - DCC ENERGY PLC

BlackRock Group

21 July 2026

3.             DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE (Note 4)

Where there have been dealings in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 3(a), (b), (c) or (d) (as appropriate) for each additional class of relevant security dealt in.

The currency of all prices and other monetary amounts should be stated.

(a)           Purchases and sales

Class of relevant security	Purchase/sale	Number of securities	Price per unit (Note 5)
€0.25 ordinary shares	Purchase	20	GBP 62.7000
€0.25 ordinary shares	Sale	9,547	GBP 62.7500

(b)           Cash-settled derivative transactions

Class of relevant security	Product description e.g. CFD	Nature of dealing e.g. opening/ closing a long/ short position, increasing/ reducing a long/ short position	Number of reference securities (Note 6)	Price per unit (Note 5)
€0.25 ordinary shares	CFD	Reducing short	10	GBP 62.7000
€0.25 ordinary shares	CFD	Reducing long	3,440	GBP 62.7000
€0.25 ordinary shares	CFD	Increasing short	3,416	GBP 62.7000

(c)           Stock-settled derivative transactions (including options)

(i)            Writing, selling, purchasing or varying

Class of relevant security	Product description e.g. call option	Writing, purchasing, selling, varying etc.	Number of securities to which option relates (Note 6)	Exercise price per unit	Type e.g. American, European etc.	Expiry date	Option money paid/ received per unit

(ii)           Exercise

Class of relevant security	Product description e.g. call option	Exercising/ exercised against	Number of securities	Exercise price per unit (Note 5)

(d)           Other dealings (including transactions in respect of new securities) (Note 3)

Class of relevant security	Nature of dealing e.g. subscription, conversion, exercise	Details	Price per unit (if applicable) (Note 5)
€0.25 ordinary shares	Transfer in of Shares	344	N/A

4.             OTHER INFORMATION

(a)           Indemnity and other dealing arrangements

Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the person making the disclosure and any party to the offer or any person acting in concert with a party to the offer. Irrevocable commitments and letters of intent should not be included. If there are no such agreements, arrangements or understandings, state "none"

(b)           Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated.

(c)           Attachments

Is a Supplemental Form 8 attached?

NO

Date of disclosure	21 July 2026
Contact name	Jana Blumenstein
Telephone number	+44 20 7743 3650

Public disclosures under Rule 8.3 of the Rules must be made to a Regulatory Information Service.

NOTES ON FORM 8.3

1.             See the definition of "connected fund manager" in Rule 2.2 of Part A of the Rules.

2.             See the definition of "interest in a relevant security" in Rule 2.5 of Part A of the Rules and see Rule 8.6(a) and (b) of Part B of the Rules.

3.             See the definition of "relevant securities" in Rule 2.1 of Part A of the Rules.

4.             See the definition of "dealing" in Rule 2.1 of Part A of the Rules.

5.             If the economic exposure to changes in the price of securities is limited, for example, by virtue of a stop loss arrangement relating to a spread bet, full details must be given.

6.             See Rule 2.5(d) of Part A of the Rules.

7.             If details included in a disclosure under Rule 8 are incorrect, they should be corrected as soon as practicable in a subsequent disclosure. Such disclosure should state clearly that it corrects details disclosed previously, identify the disclosure or disclosures being corrected, and provide sufficient detail for the reader to understand the nature of the corrections. In the case of any doubt, the Panel should be consulted.

For full details of disclosure requirements, see Rule 8 of the Rules. If in doubt, consult the Panel.

References in these notes to "the Rules" are to the Irish Takeover Panel Act, 1997, Takeover Rules, 2022.

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