If a shareholder decides to transfer shares to a third party outside the company, the proposed transfer of shares shall be notified to the company and to each of the shareholders either by registered letter with acknowledgement of receipt, or in one of the forms provided for in Article 1690 of the Civil Code.
Within two months of the transferor notifying the company of the proposed transfer, the company shall notify its express consent to the transfer or its refusal in the manner provided for in the previous paragraph. If the company has not made its decision known, consent is implicitly given.