OXO Technologies Holding Nyilvánosan Működő Részvénytársaság

Regulatory Filings • Sep 29, 2025

info@o3.partners www.o3.partners investor.relations@o3.partners

Notice on the Change of Contact Details of O3 Partners N.V.

O3 Partners N.V. (registered office: Netherlands, 3013 AK Rotterdam, Stationsplein 45, company registration number: 96066717, hereinafter the "Company") hereby informs its esteemed Investors of the following:

As a result of the Company's previously announced change of name and corporate identity, with effect from 29 September 2025, the Company's website, the availability of publications on the Company's website, as well as the investor relations contact e-mail address will be modified.

New contact details of the Company: Registered office: 3013 AK Rotterdam, Stationsplein 45 Telephone: +36-30-7131373 Website: o3.partners E-mail: info@o3.partners

Investor Relations Contact: Tamás Bojtor Telephone: +36-30-7131373 E-mail: investor.relations@o3.partners

The Company's publications can be accessed at: https://investorrelations.o3.partners/investment-news.

Rotterdam, 29/09/2025

dr. Péter Oszkó O3 Partners N.V.