Thank you for the question.
I'm not aware of a specific expert panel that has been formed to look at those particular HS codes.
We do work on behalf of specialty product producers. In fact, we did have a recent victory for cedar shake and shingle producers in which we were able to get their products excluded from the duty orders completely by working closely with the industry on that issue. That was one recent victory in which we were able to exclude an entire category of products from the duty orders.