Quang Hanh is a prestigious Vietnamese mineral water brand rooted in the naturally occurring thermal springs of Cam Pha, Quang Ninh province, and is widely celebrated for its unique medicinal and refreshing properties. Operated under the Quang Ninh Mineral Water Joint Stock Company, the brand is a household name in Vietnam, particularly famous for its Natural Sparkling Mineral Water which is rich in essential minerals like Calcium, Magnesium, and Potassium. Unlike standard purified water, Quang Hanh distinguishes itself through its distinct salty-sweet mineral profile and its popular flavored variants—most notably the Salted Lemon (Chanh Muoi) line—which is a cultural staple for rehydration and digestive health. By leveraging its unique geological source and a reputation for “purity from the deep earth,” the brand has successfully transitioned from a regional specialty to a national icon of health-conscious, natural refreshment.