Comment by Chris McGuire

Yeah, I completely agree. I think we need to do both. I mean certainly on the most advanced Chinese fabs, we certainly should make sure that they are blocked from all US allies’ tools and completely blacklisted. The fact that allies can backfill is problematic. But I think you’re completely right that the only controls that we know will work and given the importance of this, it is really important that we apply controls that we know work — and thank you for your leadership in this issue over the years — I think it mandates that we have expanded country-wide controls to make that we get everything that is actually going to help Chinese production. And the best way to do that from a definition’s perspective as the China Committee, I think, highlighted in their report, is just to do all 300-millimeter tools, all tools capable of 300-millimeter wafers, which would … There’s no way that you could make any advanced chips with any 200-millimeter wafer. Completely agree. I think we should really block the Chinese comprehensively from being able to buy, make, or rent access to U.S. AI chips, and Congress should definitely help across the board on all three of those. Unverified source (2025)