:Chindata Group said on Friday it would go private in a sweetened $3.16 billion deal with investor Bain Capital, ending months of uncertainty over the future of the Chinese data center operator that also received interest from China Merchants Group. The all-cash offer from Bain Capital, Chindata's largest investor with 87 per cent of voting power and 42 per cent of outstanding shares, values each American depository share of the company at $8.60. That is a 7.5 per cent increase from the private equity firm's proposal in June.