VIOHALCO SA/NV Change concerning the timeline of actions to be followed for the completion of the Cross Border Merger and the delivery of the new shares of Viohalco S.A. to Sidenor’s S.A. shareholders .Change concerning the timeline of actions to be followed for the completion of the Cross Border Merger and the delivery of the new shares of Viohalco S.A. to SidenorΆs S.A. shareholders