Invitation to attend the extraordinary shareholders’ meeting of the Company to be held on July 2, 2025

REGULATED INFORMATION
June 13, 2025, 7:00am CET / 1:00am ET

NYXOAH SA
(Euronext Brussels/Nasdaq: NYXH)
Rue Edouard Belin 12, 1435 Mont-Saint-Guibert, Belgium
(hereinafter the “Company”)

Invitation to attend the extraordinary shareholders’ meeting of the Company
to be held on July 2, 2025

The board of directors of the Company is pleased to invite its securities holders to attend the extraordinary shareholders' meeting of the Company, to be held on Wednesday, July 2, 2025 at 2:00 p.m. CET at the Company's seat, or at such other place as will be indicated prior to such time.

The Company will also set up a video conference to allow holders of securities of the Company who have duly registered for the extraordinary shareholders’ meeting to follow the meeting remotely and ask questions, as the case may be in writing, during the meeting. The modalities to attend the meeting via video conference will be communicated to the relevant securities holders in due time. The videoconference will not qualify as an electronic communication tool to attend and vote at the extraordinary shareholders’ meeting as referred to in Article 7:137 of the Belgian Code of Companies and Associations (the “CCA”), but will be an extra facility for securities holders to follow the shareholders’ meeting. Holders of securities wishing to attend the meeting via video conference and also validly vote on the items on the agendas, are invited to exercise their voting rights prior to the shareholders’ meeting by following the rules set out in this convening notice, either by voting remotely by mail, or by giving a proxy to a representative of the Company.

In order to facilitate the keeping of the attendance list on the day of the extraordinary shareholders' meeting, the holders of securities issued by the Company and their representatives are invited to register as from 1:45 p.m. CET.

AGENDA OF THE EXTRAORDINARY SHAREHOLDERS’ MEETING

1. Adding paragraphs at the end of article 13 of the articles of association of the Company to introduce the right to nominate directors for shareholders having held at least five percent (5%) of the outstanding shares of the Company in registered form continuously for a period of at least three (3) years

Proposed decision: The shareholders’ meeting decides to add the following paragraphs at the end of article 13 of the articles of association of the Company: