Dutch research shows that sugars are added, at least in two kinds of Lipton tea.
In Lipton Green tea was up to 5% of the total weight of the contents of a tea bag is determined by disaccharide of natural origin.

Lipton-Green-Tea-contains-sugarsThe TV program `Keuringdienst van Waarde` (NPO) found that the raw material (tea) is supplemented by the manufacturer of the tea with natural additives such as rose petals. In addition to these natural flavors brown granules were also discovered. Laboratory studies showed that the grains intended mainly (90%) consisted of natural sugars. These are listed on the packaging as aromatics.

That the sugar granules are also present in other countries as a flavoring not yet apparent from the documentary.