Fears for press freedom as billionaire takes control of NMG

Hong Kong billionaire to sell Panama Canal ports to US firm

Billionaire and spiritual leader the Aga Khan dies

Selena Gomez joins billionaire celebrity rich list

African Billionaire Prateek Suri bets big on mining and infrastructure

Billionaire Bernard Arnault & family champagne firm eye Kenyan expansion

South African rhino-lover seeks billionaire successor

Chinese tech billionaire goes missing: company