Nestlé S.A. (SWX:NESN) is believed to be circling Ziwipeak Limited (ZiwiPeak), which is understood to have a $1 billion-plus asking price. It is understood that the business is up for sale through PwC, with the owners hoping for a price that equates to about 20 times its earnings. Nestle is expected to go head to head with global buyout funds in the auction.