Any company which maintains at least one of the relationships through a natural person or a group of natural persons acting in concert are also considered as a single undertaking provided that these undertakings carry out their activities or part of their activities in the same relevant market or in contiguous markets:

1. a company that holds the majority of the shareholders' or partners' voting rights in another company;
2. a company that has the right to appoint or remove the majority of the members of the administrative, management or supervisory body of another company;
3. a company that is entitled to exercise a dominant influence over another company by virtue of a contract concluded with the latter or by virtue of a clause in the latter's articles of association;
4. a company that is the shareholder or partner of another company in which, by virtue of an agreement entered into with other shareholders or partners of the company in question, it has sole control of the majority of the company's shareholders' or partners' voting rights.