Global Data Centre Group (ASX:GDC) has confirmed the sale of AirTrunk to Blackstone will effectively net it $123M given its existing investment into the former via Macquarie. “As an investor in the [Macquarie]-led consortium, GDC’s proceeds from the Transaction are anticipated to be ~A$123 million1 equating to ~$1.59 per security,” GDC wrote on Monday. The company originally chucked $32M at AIrTrunk. The company flagged that its $123M expectation is forward-looking per normal ASX rules and regulations. Most importantly, the deal needs to pass the Australian Foreign Investment Review Board (FIR…