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  • support@greystonedatatech.com
  • email
  • Phone: 510-661-6793
  • email
  • sales@greystonedatatech.com
  • email
  • Fax: 510-661-2105
USA - Headquarters
Greystone Data Technology (GDT, Inc.) 
40500A Albrae St.
Fremont CA 94538 USA
Phone: 510-661-6793
Fax: 510-661-2105
Vietnam - R&D Campus & Repair Center
Greystone Data Systems Vietnam
Wholly owned subsidiary of GDT, Inc. USA

62 Linh Trung Export Processing Zone 2
Binh Chieu Ward, Thu Duc District,
Ho Chi Minh City.
Phone: (+84) (8) 3 729 1473
Fax: (+84) 8 3 729 1708
Singapore - Asia-Pacific Sales Office
Greystone Data Technology (GDT PTE. LTD.) Singapore
Penthouse Level, Suntec Tower Three,
8 Temasek Boulevard, Singapore 038988 
Phone: (65) 9628 2661
Fax: (65) 6866 3217
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