Belysse Group NV

Major Shareholding Notification • Aug 19, 2025

PRESS RELEASE

Waregem, 19 August 2025, 17:45 CET Regulated information For immediate publication

Publication of a Transparency Notification

DISCLOSURE MADE PURSUANT TO THE LAW OF 2 MAY 2007 ON THE DISCLOSURE OF SIGNIFICANT SHAREHOLDINGS

Belysse Group NV, listed on Euronext Brussels (the "Company"), received on 19 August 2025 a transparency notification. This transparency notification indicates that on 12 August 2025 the total holding of Mr Joris Ide in voting rights of the Company, crossed the threshold of 5%. Mr Joris Ide holds 5.56% of the voting rights linked to securities of the Company.

The aforesaid notification dated 19 August 2025 contains the following information:

Reason for the notification:

• o acquisition or disposal of voting rights securities or voting rights
• Notification by: a person that notifies alone
• Persons subject to the notification requirement: Joris Ide
• Transaction date: 12 August 2025
• Threshold that is crossed (in %): 5%
• Denominator: 35,943,396
• Notified details:

A) Voting rights	Previous notification		After the transaction
	# of voting rights	# of voting rights		% of voting rights
Holders of voting rights		Linked to securities	Not linked to the securities	Linked to securities	Not linked to the securities
Mr Joris Ide		2,000,000		5.56%
TOTAL		2,000,000	0	5.56%	0.00%

B) Equivalent financial instruments	After the transaction
Holders of equivalent financial instruments	Type of financial instrument	Expiration date	Exercise period or date	# of voting rights that may be acquired if the instrument is exercised	% of voting rights	Settlemen t
TOTAL

Chain of controlled undertakings through which the holding is effectively held: not applicable

• Additional information: not applicable
• Miscellaneous:

this press release may be consulted on the website of the Company via the link www.belysse.com/investors.

FOR FURTHER INFORMATION, PLEASE CONTACT

investor.relations@belysse.com

www.belysse.com

ABOUT BELYSSE

Belysse manufactures sustainable textile floor coverings for commercial and residential applications and commercialises its products focusing 90% on North-America and Europe under the premium brands Bentley (US), modulyss, arc edition and ITC (Europe). Headquartered in Waregem (Belgium), Belysse employs nearly 1000 people and operates three manufacturing sites in Belgium (Tielt and Zele) and the United States (Los Angeles). Belysse realised sales of 280 million euros in 2024 and is listed on Euronext. (Euronext: BELYS).