Raw glass comes from all over
Clear can be
Shott from Germany
Simax from Chec Republic
China clear for China
then there are some other countries also
For Color, many of the minerals come from China. Many of the raw cullet used comes from all over the world. We feel if the glass is finished here in the USA, it is USA color. For instance Greasy glass uses a lot of China cullet, but their color is amazing! You have to do a lot of work to all glass to make it into color.