Looks identical to this cooler branded as Siberian.
Free Shipping 30 Qt Siberian Cooler Ice Chest Rotomolded Design SC 30 W | eBay
Seems like there are couple handfuls of cooler styles built in China and anyone can slap there name on them.
Alibaba sells them all. Check their website.
If you buy a hundred you can name them "Whetstone" Coolers!
Tough to believe in a company after 2 weeks, they'll fade away in 3 years but the cooler will probably last.
eBay is swamped with cheap rotomolded coolers and more are added daily.