Nước Tương Nam Dương Đậu Nành Lên Men Tự Nhiên is a naturally fermented soy sauce produced by the Vietnamese company Nam Dương. It was introduced in 2020 as part of the company’s modernized soy sauce range. The product is made from carefully selected natural soybeans. The soybeans undergo fermentation for several months under controlled production conditions. The process combines the brand’s soy sauce-making experience dating back to 1951 with modern manufacturing technology. During fermentation, the soybean components gradually break down and develop the sauce’s characteristic aroma and umami flavor. The finished product has a dark brown color, a liquid consistency and a pronounced fermented soybean aroma. Its flavor is salty and full-bodied but milder and less concentrated than that of artisanal tamari sauces aged for several years. It can be served directly as a dipping sauce or used for marinating and seasoning cooked dishes.