From the January 2021 Robb Report:

… the US cleaned up in two categories thanks to the ever-fruitful Napa Valley. The Best Cabernet Sauvignon was awarded to Bond St Eden 2015 while Promontory, opened in 2017, was crowned the World’s Best New Winery. Promontory’s own Cory Empting was also named the World’s Best Winemaker.