We used to have the Mexican Mining Registry office number on another board so you could call and talk to Tatiania somethingorother and she'd tell you everything you wanted to know about the mining titles and concessions.

Mexico is slow updating their online info.

OK, I just did a quick search. This might be the info...

Subdirección de Registro Público de Minería
Lic. Tatiana Sigler Baca

Teléfono 52-29-61-00 Ext. 46031 y 46044

and her email address: tatiana.sigler@economia.gob.mx

Her phone number is 52028416 ext.46031