Among the other deals announced this summer : JFE , Japan 's second-largest steelmaker , paid around $ 1bn for a minority holding in JSW Steelin India ; the brokerage Daiwa Securities agreed to pay $ 1bn for KBC 's global convertible bond and Asian equity derivatives businesses ; and Rakuten , Japan 's largest online shopping site , bought Buy.com in the US and PriceMinister in France .