HNA's portfolio is huge, especially in the aviation sector.
Airlines under full HNA ownership:
Beijing Capital Airlines
Fuzhou Airlines
Grand China Air
GX Airlines
Hainan Airlines
Hong Kong Airlines
HK Express
Lucky Air
Tianjin Airlines
Urumqi Air
West Air
Suparna Air
Part Ownership
Africa World Airlines (Ghana)
Aigle Azur (France - Orly)
Comair (South Africa)
MyCargo Airlines (Turkey ops for SV)
TAP Portugal (Lisbon - Portugal)
Virgin Australia (Sydney/Melbourne AU)
HNA also own 16 airports in China alone as well as Rio's airport group.
Also own
NH Hotels
Swissport
Gate gourmet
AirFrance Catering
Avolon (Aircraft lessor)
CIT Aviation (Aircraft lessor - to be merged with Avolon)
Part owner in
Hilton Worldwide
Deutsche Bank
HNA also are part owners of many other financial companies though I didn't want to list too many.