A clutch of private equity firms have submitted bids for Singapore-based hard disk drive manufacturer Unisteel Technology in an auction that could fetch more than S$800m (€379m).

First round bids have already been submitted with US buyout groups Kohlberg Kravis Roberts and Bain Capital understood to be among those to have made offers, according to sources cited by newswire Reuters. Other firms taking part include The Carlyle Group and TPG Capital.