The Indian tea giant agreed to buy a 30% stake in US beverage firm Energy Brands, better know as Glacéau, for $677 million. The company from Whitestone, NY owns brands like VitaminWater, a nutrient-enhanced water that has seen a surge in popularity across the US as consumers opt for healthier alternatives to conventional sodas. Tata Tea expects Glacéau to post revenue of $355 million in 2006 and $700 million in 2007.