The next materials tradeshow?

I’m looking for new materials for lighting and I wonder if anyone knows of a good trade show to go to other than the plastics show in Chicago. I’m not just looking for plastics, it could be anything…or anywhere.

Try the National Manufacturing Week that is in Chicago from March 7th-March 10th. If you sign up on line soon it is still FREE!!! I am a designer in Chicago and am going with our work group.