GRESCO Corporate Office
153 Haiguas Drive
Agana Heights, GU 96910

 

 

Tel / Fax:
Tel: 671-472-4738

Fax: 671-472-4739

 

 

Email:

Accounting/Administration:
admin@grescopacific.com

 
Marketing:
marketing@grescopacific.com

 

Human Resources:
hr@grescopacific.com

General Queries:

 

GRESCO Environmental
environmental@grescopacific.com

 

GRESCO Refinery
refinery@grescopacific.com

GRESCO Wastewater Solutions
wastewater@grescopacific.com
www.grescowastewater.com

GRESCO LP Gas
lpg@grescopacific.com

GRESCO ITI – The Power$avers
iti@grescopacific.com

GREASEBUSTERS
gb@grescopacific.com