Technical note: In the case that it is indicated that the intellectual property of any information published by the portal belongs to a third party, it must obtain the corresponding authorizations directly with the owners.

Note on dates: The above license was still on the site on March 16, 2022. On or before April 6, 2022 the license changed to say

"Se autoriza al Usuario a visualizar y descargar los materiales contenidos en el sitio solamente para su uso personal y no para un uso comercial... El Usuario no deberá modificar, reproducir o mostrar pública o comercialmente los materiales, ni podrá distribuir o utilizarlos con algún propósito público o comercial;"

(Machine translation) "The User is authorized to view and download the materials contained in the site only for their personal use and not for commercial use... The User shall not modify, reproduce or publicly or commercially display the materials, nor may he distribute or use them for any public or commercial purpose"

which is not a license we can accept on Wikimedia Commons, so files published after that March 16, 2022 date will not be acceptable.