Established in 1999, Matetic is owned and operated by Jorge and Cristian Matetic. The biodynamically farmed, certified organic vineyards are located in Rosario Valley, a subdivision of San Antonio Valley. There are two distinct types of soil in the valley – on the hillsides the soil is redbrick in color, thin, with a superficial layer of clay and decomposed granite below. On the valley floor, the soil composition has a deeper layer of granite, red clay on top over a layer of darker colored soil. The fruit is hand-picked and estate bottled. Winemaker Paula Cardena Saez began as an assistant for Errazuriz and William Cole Vineyards. She is assisted by winemaker Julio Bastias and consultant Ken Bernards.