For the application of Article L. 228-27, the defaulting shareholder is given formal notice by registered letter with acknowledgement of receipt.
The sale of shares not admitted to trading on a regulated market is carried out at public auction by an investment services provider other than a portfolio management company or by a notary under the conditions provided for in article L. 211-21 of the Monetary and Financial Code.To this end, the company shall publish in a medium authorised to receive legal announcements in the département of the registered office, at least thirty days after the formal notice provided for in the previous paragraph, the number of shares offered for sale. It shall notify the debtor and, where applicable, its co-debtors of the sale by registered letter, indicating the date and number of the medium in which the publication was made. The shares may not be put up for sale less than fifteen days after the registered letter is sent.