17Freedom of establishment, which Article 49 TFEU grants to European Union nationals, includes the right for them to take up and pursue activities as self-employed persons and to set up and manage undertakings under the conditions laid down for its own nationals by the law of the Member State where such establishment is effected. It entails, in accordance with Article 54 TFEU, for companies or firms formed in accordance with the law of a Member State and having their registered office, central administration or principal place of business within the European Union, the right to exercise their activity in the Member State concerned through a subsidiary, a branch or an agency (Case C‑307/97 Saint-Gobain ZN EU:C:1999:438, paragraph 35, and Case C‑446/03 Marks & Spencer EU:C:2005:763, paragraph 30).
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