1. Commerce has published in the Federal Register (87 FR 20390) on 04/07/2022 the final results of its administrative review of certain producers and/or exporters subject to the antidumping duty order on certain heavy walled rectangular welded steel pipes and tubes from the Republic of Korea (Korea) for the period 09/01/2019 through 08/31/2020. 2. As a result of Commerce's review, the cash deposit rates have been revised for certain companies. Therefore, for shipments of certain heavy walled rectangular welded steel pipes and tubes from Korea produced and/or exported by the firm(s) listed below, entered, or withdrawn from warehouse, for consumption on or after 04/07/2022, the required cash deposit has been revised: Producer and/or Exporter: HiSteel Co., Ltd. Case number: A-580-880-002 Cash deposit rate: 10.24% Producer and/or Exporter: SeAH Steel Corporation; Dong-A Steel Co., Ltd.; DOSCO; Dong-A Steel Company Case number: A-580-880-021 Cash deposit rate: 1.61% 3. If any entries of merchandise are exported by a firm other than the producer, then the following instructions apply: A. If the exporter of the subject merchandise has its own rate, use the exporter's rate to determine the cash deposit rate. B. If the exporter of the subject merchandise does not have its own rate but the producer has its own rate, the cash deposit rate will be the producer's rate. C. Where neither the exporter nor the producer currently has its own rate or the producer is unknown, use the all-others rate for establishing the cash deposit rate. 4. For all producers/exporters of certain heavy walled rectangular welded steel pipes and tubes from Korea without their own rate, the cash deposit rate is 3.24 percent. 5. These cash deposit requirements shall remain in effect until further notice. Do not liquidate any entries of merchandise covered by the administrative review until specific liquidation instructions are issued. 6. 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 OII:AM.) 7. There are no restrictions on the release of this information. Alexander Amdur