The whole Park, Sharif, Haber family.This shouldn't be news to anyone just a general reminder.
Graphblockchain and Justera Health are spinoff sister companies of Datametrex.
Datametrex owns shares in both and its general business strategy has been to acquire and build up verticles and then sell/ splits them off into either sister companies or gets the existing sister companies to buy them. (Earlier this summer DM released news they were considering selling off the clinics which were either going to go to Justera or become its own entity - they changed there minds and sold the EV verticle to GBLC instead)
Paul Haber is the CEO of GraphBlockChain, and has board seats and influences decisions in Datametrex and Justera Health.
Charles Park is the COO of Datametrex and also works for Graphblockchain (it's not on the website you need to look up SEDAR and see the management list)
Young Choo Lee is a board member of GraphBlockchain and until recently ran the Korean office for Datametrex. He is a major shareholder in both. (I believe they recently hired his replacement in DM though he still holds the position according to GBLC SEDAR docs from November)
Edward Park and Jibran Sharif run Justera Health, they have relations with Charles Park and Omar Sharif (Omar runs the healthhcare verticles)