Purra Natural Mineral Water comes from Phra Ngam Source, Sing Buri Province, from a 1,000 feet deep. The water source is over 30,000 years old, so it has undergone a long period of mineral deposition through a natural filtration process over and over again until becoming a natural mineral water. It is the first and only brand in Thailand that has been certified for quality standards from the NSF International Institute united states which is considered a standard of products that are accepted all over the world. It has been selected to be served on more than 30 world-class airlines, giving it the opportunity to build a brand that is known to many foreign tourists.