became A. Le Coq once again in 1997, when it was privatised by Olvi. Since then, the A. Le Coq brand has been reintroduced and significant investments have made the company (and its trademark) one of the leading and most recognised brands in Estonia. Products and markets A. Le Coq is Estonia's oldest brewery and currently the country's biggest beverage producer. Its range incorporates ten product categories: waters, syrups, juices, juice drinks, soft drinks, energy drinks and sports drinks; and three light alcoholic drinks: beers, ciders and gin long drinks. A. Le Coq's key brands are A. Le Coq (beer), Fizz (cider), Aura (juice), Dynami:t (energy drink), Arctic (sport drinks) and Limonaad (softdrink). The company's largest product group comprises its beers, which are principally manufactured under the A. Le Coq trademark. The Aura trademark represents non-alcoholic drinks, including juices, waters and healthy juice drinks, which are marketed in Aura Active. One of the best known international trademarks in the company's portfolio is Fizz, representing a series of natural fruit and berry-flavored ciders. The two most popular soft drinks in the company's product portfolio are the traditional Limonaad and Kelluke, which have been sold for decades. The company exports its products mainly to Finland, Sweden, Denmark, the United Kingdom, Latvia and Lithuania. Their main export sources are beers, ciders, long drinks and juices. In 2018, Le Coq entered the Hong Kong market with its cocktail line. Fermented kvass controversy In early 2009, A. Le Coq announced plans to start producing fermented kvass. The plans were controversial due to the drink's ethanol content (estimated at around 0.5–0.7 percent by volume); most bottled kvass sold in Estonia is manufactured from unfermented malt or malt extract and does not contain ethanol. The issue of safety of fermented kvass for children was particularly contentious. In June 2009, A. Le Coq announced it would start selling the fermented kvass in an unbottled form. Kelluke Kelluke ("Little bell", originally named after a Campanula) is a clear lemon-flavoured non-alcoholic soft drink produced since 1965 by A. Le Coq (formerly and colloquially known as Tartu Õlletehas (Tartu Brewery)) in Estonia. After a temporary name change since 2001, Kelluke made its comeback in 2006. Since 2010 Kelluke has been produced without preservatives. It has been compared to Sprite, but the original makers of the drink were not familiar with Sprite before the recipe for Kelluke was finished. See also Beer