Where are factories that produce Reidel wine glasses located?

Specifically, the main production facilities are located in:

* Kufstein, Austria: This is the headquarters of Riedel and where most of their hand-blown crystal glasses are made.

* Neuveglise, France: This facility focuses on the production of machine-made glasses, primarily for the Riedel "O" series.

While the majority of Riedel glasses are manufactured in these locations, the company may also have other production facilities or partnerships elsewhere in the world.