Sung has been highly involved with basketball development in Manitoba for the past ten years. In 2021, Sung was the head coach of the 15U Girls Manitoba Provincial Team. He was also the assistant coach with the 17U Girls Provincial Team (2019), the head coach of the Boys 15U Provincial Team (2014-2015), and the boys Centre of Performance coach (2013 – 2019). Sung has additional head coaching experience with the Junior Varsity Boys at Maples Collegiate (2013), Manitoba Summer Games team (2013), 18U Boys Chinese Universal Storm (2011-2013) and Junior Bison Girls Basketball Program (2008-2010).
Sung graduated from Steinbach Regional Secondary School and played post-secondary basketball at Providence University College. He graduated with a Bachelor of Physical Education and Education degree from the University of Manitoba and is currently a high school Physical Education and Human Ecology teacher at Dakota Collegiate.