Nongfu Spring drinks can be exchanged with the salesman at any time if the date is not good. Nongfu Spring, namely Nongfu Spring Co., Ltd., formerly known as Zhejiang Qiandao Lake Yangshengtang Drinking Water Co., Ltd., was established on September 26th, 1996. Headquartered in Hangzhou, Zhejiang, it is the holding company of Yangshengtang. Nongfu Spring never uses city tap water, and every drop of Nongfu Spring has a source. Nongfu Spring believes that only a good natural water source can produce high-quality bottled drinking water. Drinking water containing natural mineral elements is the most suitable for human needs, which is unmatched by any artificial water.