FYI: New HS for non-metal 9903.82.01

https://www.federalregister.gov/documents/2026/04/29/2026-08297/notice-of-technical-corrections-to-the-harmonized-tariff-schedule-of-the-united-states-for-duties

Letting others know, since this was news to me.
New updates to 4/6 proclamation, includes 9903.82.01 covering articles of derivative steel, aluminum, copper which do NOT contain any of these metals.
9903.82.03 still in effect AFAIK, when less than 15% by weight. Both 0% duty. 99038201 is retroactive to 4/6.