An unknown buyer acquired an additional 6.43% stake in Bio-PAPPEL SAB de CV (BMV:PAPPEL *) on May 4, 2012. The buyer acquired approximately 118.29 million shares. Pursuant to this transaction, the buyer will now hold 80.04% stake in Bio-PAPPEL SAB de CV. An unknown buyer completed the acquisition of an additional 6.43% stake in Bio-PAPPEL SAB de CV (BMV:PAPPEL *) on May 4, 2012.