1. On 10/15/2026, Commerce issued a final scope ruling that micro channel heat exchangers are covered by the scope of the antidumping and countervailing duty orders on aluminum extrusions from the People's Republic of China (A-570-967; C-570-968). 2. Specifically, Commerce determined that micro channel heat exchangers are covered by the scope of the orders because under Commerce's updated interpretation of the scope, micro channel heat exchangers constitute subassemblies rather than finished merchandise, which are not excluded from the scope of the orders under the finished merchandise exclusion. 3. This final scope ruling is applicable on a country-wide basis, regardless of foreign producer, exporter, or importer. 4a. Continue to suspend liquidation of entries of micro channel heat exchangers already subject to the suspension of liquidation under the antidumping and countervailing duty orders on aluminum extrusions from the People's Republic of China at the cash deposit rate(s) in effect on the date of entry in accordance with message 5363401, dated 12/29/2025. 4b. For all entries of micro channel heat exchangers not already subject to the suspension of liquidation, CBP should suspend liquidation of: (i) shipments entered, or withdrawn from warehouse, for consumption on or after 12/19/2025, and (ii) shipments entered, or withdrawn from warehouse, for consumption on or after 11/04/2021. CBP shall require, for such entries, a cash deposit at the applicable rate(s) in effect on the date of entry. Commerce established a third-country case numbers to allow micro channel heat exchangers assembled in Mexico to be properly reported as subject to the orders on aluminum extrusions from the People's Republic of China (A-570-967; C-570-968) upon entry. Exporter: Country-Wide Case Number: A-570-967-000; C-570-968-000 Cash Deposit Rate: 86.01% Third Country: Mexico Case Number: A-201-994-000; C-201-995-000 Cash Deposit Rate: 86.01% The third country AD/CVD case numbers above have been assigned for CBP purposes. 5. Entries of products covered by paragraph 4 should not be liquidated until specific liquidation instructions are issued. 6. In accordance with 19 CFR 351.225(l)(5), this instruction does not affect or otherwise limit CBP's independent authority to take any additional action with respect to the suspension of liquidation or related measures. 7. If there are any questions by the importing public regarding this message, please contact the Call Center for the Office of AD/CVD Operations, Enforcement and Compliance, International Trade Administration, U.S. Department of Commerce, at (202) 482-0984. CBP ports should submit their inquiries through authorized CBP channels only. (This message was generated by OVI: MH.) 8. There are no restrictions on the release of this information. Alexander Amdur