Geotec Hanoi 2019November 28-29, 2019 - Hanoi, Vietnam Geotec Hanoi 2016November 24-25, 2016 - Hanoi, Vietnam Geotec Hanoi 2013November 28-29, 2013 - Hanoi, Vietnam Geotec Hanoi 2011October 6-7, 2011 - Hanoi, Vietnam