China's HNA becomes Deutsche Bank's biggest shareholder

China’s aviation and real estate conglomerate HNA Group has increased its stake in Deutsche Bank to 9.92%, overtaking Blackrock as the biggest shareholder, according to Bloomberg.HNA, which holds the stake via investment vehicle C-Quadrat, initially reported a 3.04% stake in the Germany's biggest lender in February before increasing its holding.The investments came as the bank sought to boost its capital with an 8 billion euros share offering.Led by billionaire Chen Feng, HNA Group has been on an acquisition spree to expand from its traditional business into financial services.According to Bloomberg, the company spent $30 billion on deals over the past year, acquiring stakes in Swiss duty-free operator Dufry, Singapore-based logistics provider CWT, and hotel Hilton Worldwide Holdings.The company now operates in businesses including aviation, logistics, finance, real estate, hospitality, tourism and ecological technology.