In case of companies which are operated in the legal form of sole proprietorship, the business owner is eligible. With other companies, the persons who are commissioned with the conduct of business according to the law, the by-laws or articles of association or who are authorised to represent them are eligible. Persons who are executive directors or representatives of internal branch offices are also eligible if they are listed in the commercial register in this capacity. Provided the eligible person represents a trading participant, he/she shall have the professional expertise for exchange securities trading.