Groupe Danone has agreed to acquire an 88% stake in Poland's leading bottled water producer Zywiec Zdroj. With a turnover of  €45m in 2001, Zywiec Zdroj is the leader in a Polish market of 1.3 billion litres of water per year, the largest in Eastern Europe. In April 2001, Danone took up a 50% stake in the company, which, the company said is experiencing strong growth.