Its total annual production rate of more than 600 million litres makes it the largest producer in this part of Europe.

In 1823, the pharmacist Josip Mikšić conducted the first quantitative scientific analysis of Jamnička kiselica.

"At the end of the 19th century, Jamnica was sold to Vilim Lovrenčić who modernized the bottling plant and organized sales in 1899.

On 1 August 1967, Marijan Badel company bought the Jamnička kiselica mineral water plant from Agrokombinat.

In May 1982, the product line was extended to include new low-calorie mineral water-based beverages named Jana, which came in two refreshing flavours: lemon and orange.

In 1986, a new mineral water–based beverage called Sprint tonic was launched and recommended to athletes and those who engage in additional physical activity.

On 7 October 1991, the Jamnica bottling plant was shelled, and the facilities, mineral water filling lines, packaging and finished products were all damaged by July 1992.

August 1995, saw the beginning of the production of non-carbonated Jamnica mineral water, and the redesign of the label and company logo took place in December of the same year.

In 2000, Jamnica became the majority owner of Sarajevski kiseljak, the largest and most modern mineral water factory with rich history and tradition in Bosnia and Herzegovina.

On July 18, 2002, Jamnica started the commercial production of the natural spring water Jana.

[5][6] In July 2004, Jamnica became the majority owner of the Fonyodi mineral water bottling plant in Hungary.

Due to the extraordinary depth of its 800-metre-deep (2,600 ft) spring situated under the ancient dolomite rocks, Jana is characterized by an exceptional mineral composition and a particularly prominent ratio of calcium and magnesium.