For more information:

Sergio Cedeño:

sceden@ersa.com.ec

José Franco :

jfranco@ersa.com.ec

Katherine Gomez :

tgomez@ersa.com.ec

Isabel Maspons:

masponsisabel@yahoo.com ; imaspo@ersa.com.ec

Address: Dirección Av. Domingo Comín y Pedro José Boloña Phone: (593-4) 2447448 • TeleFax: 2441000 Ext. 2121 Guayaquil - Ecuador

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Address: Dirección Av. Domingo Comín y Pedro José Boloña * Phone: (593-4) 2447448 • TeleFax: 2441000 Ext. 2121 Guayaquil - Ecuador