• 10/07/2021 - 6th addition of the shareholders' agreement to adjust the number of shares linked to the shareholders' agreement.

• 11/12/2018 - Private Instrument of Amendment to Stockholders’ Agreement

• 12/18/2017 - Private Instrument of Amendment to Stockholders’ Agreement

• 07/29/2016 - Private Instrument of Amendment to Stockholders’ Agreement

• 07/30/2013 - Private Instrument of Amendment to Stockholders' Agreement

• 06/15/2011 - Private Instrument of Amendment to Stockholders' Agreement