In a statutory audit firm, the functions of manager, chairman, chairman of the board of directors or of the management board, sole chief executive officer, chairman of the supervisory board, chief executive officer and deputy chief executive officer must be performed by statutory auditors authorised in France or in another EU state. Moreover, at least the majority of the members of the management, administration, management or supervisory bodies must be statutory auditors. Non-EU/EEA nationals may be approved as statutory auditors subject to reciprocity
"Article L822-1
I.- The functions of statutory auditor are carried out by natural persons or by companies registered on a list drawn up by the High Council of the Statutory Auditors, under the conditions provided for in Articles L. 822-1-1 to L. 822 -1-4 .
[...]
Article L822-1-1
To be included on the list of statutory auditors, a natural person must meet the following conditions:
1 ° Be French, a national of a Member State of the European Union, of a State party to the Agreement on the European Economic Area or of another foreign State when the latter allows French nationals to exercise the statutory audit of accounts;
[...]
Article L822-1-3
To be included on the list of statutory auditors, a company must meet the following conditions: [...]
2 ° The functions of manager, chairman of the board of directors or of the management board, chairman of the supervisory board and chief executive officer are performed by auditors registered on the list provided for in I of article L. 822- 1 or regularly authorized in another Member State of the European Union for the exercise of the statutory audit of accounts;
3 ° At least the majority of the members of the management, administration, management or supervisory bodies must be statutory auditors on the list provided for in I of Article L. 822-1 or regularly approved in another Member State of the European Union for the exercise of the statutory audit of accounts. The permanent representatives of the companies of associated or shareholder auditors must be auditors registered on the list provided for in I of Article L. 822-1 or duly approved in another Member State of the European Union for the exercise of statutory audit.[...]" (Commercial Code, consolidated version of 17 June 2016, Articles L822-1, L822-1-1 and L822-1-3 [google translation])
Commercial Code, consolidated version of 17 June 2016, Articles L822-1, L822-1-1 and L822-1-3 
[<a href="https://www.legifrance.gouv.fr/codes/id/LEGIARTI000032258568/2016-06-17/">Code</a>]