Kau.com was registered in 1996 and owned by a Japanese company. There are no trademarks for KAU as a standalone registration. Kau is the southernmost district on the island of Hawaii. The name of a river in India and an airport code for an airport in Finland.
Epara.com was registered in 1999 and owned by a Turkish company. There is a skincare company at EparaSkincare.com. Likely buyer or prospect if an investor purchased. They do have a registered trademark for Epara. A word mark that was registered on April 9, 2019.