Huatai Securities, a leading brokerage in China, started bookbuilding yesterday with the aim of raising up to Rmb17.26 billion ($2.5 billion) from an initial public offering (IPO) in Shanghai, which, if successful, will be the largest new share sale in China so far this year. The largest deal at the moment is last week's IPO for China First Heavy, which failed to raise the maximum amount sought as new mainland offerings have met with an increasingly...