SES: Notification of Major Holdings

LUXEMBOURG--(BUSINESS WIRE)--Regulatory News:

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

SES S.A.

2. Reason for the notification:

An acquisition or disposal of voting rights

3. Details of person subject to the notification obligation:

Name: ATLAS Infrastructure Partners (UK) Ltd.

City and country of registered office (if applicable): London, UK

4. Full name of shareholder(s):

The person is the same as the person subject to the notification (section 3)

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

2025-06-30

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

	% of voting rights attached to shares (total of 7.A)	% of voting rights through financial instruments (total of 7.B.1 + 7.B.2)	Total of both in % (7.A + 7.B)	Total number of voting rights of issuer
Resulting situation on the date on which threshold was crossed or reached	9.91	0.00	9.91	557,186,400
Position of previous notification (if applicable)	10.00	0.00	0.00	-

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

A: Voting rights attached to shares

Class/type of shares (ISIN code if possible)	Number of voting rights direct	Number of voting rights indirect	% of voting rights direct	% of voting rights indirect
5493008JPA4HYMH1HX51	55,271,495	0	9.91	0.00
SUBTOTAL A (Direct & Indirect)	55,271,495		9.91

B.1: Financial Instruments according to Art. 12(1)(a) of the Transparency Law

Type of financial instrument	Expiration date	Exercise/ Conversion Period	Number of voting rights that may be acquired if the instrument is exercised/ converted	% of voting rights
N/A

B.2: Financial Instruments with similar economic effect according to Art. 12(1)(b) of the Transparency Law

Type of financial instrument	Expiration date	Exercise/Conversion Period	Physical or cash settlement	Number of voting rights	% of voting rights
N/A

8. Information in relation to the person subject to the notification obligation:

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.

N °	Name	% of voting rights held by ultimate controlling person or entity or held directly by any subsidiary if it equals or is higher than the notifiable threshold	% of voting rights through financial instruments held by ultimate controlling person or entity or held directly by any subsidiary if it equals or is higher than the notifiable threshold	Total of both	Directly controlled by (use number(s) from 1st column)
N/A

9. In case of proxy voting:

10. Additional information:

N/A