KKR & Co. and Bain Capital LP are among private equity firms that have made offers for the non-core assets of Seven & i Holdings Co., Reuters reported Wednesday citing unidentified sources.

First-round bids ranged from about ¥750 billion to around ¥1.2 trillion ($7.6 billion), from Bain, according to the report. KKR offered about ¥800 billion, Reuters said, while local buyout firm Japan Industrial Partners was at the lower end.