You can use Mendix also in Chile. But do note that currently Mendix does not have a server in your neigbourhood. See documentation here: https://docs.mendix.com/developerportal/deploy/mendix-ip-addresses/ Here you see all the regions Mendix is currently using. But you could offcourse alsways use your own server if Mendix is the sollution for you.

Regards,

Ronald