Korea Monomers and Oligomers: Prelim AD Cash Deposit Rates Take Effect, Retroactive for Some
The Commerce Department is setting new antidumping duty cash deposit requirements for imports of monomers and oligomers from South Korea (A-580-921), after finding imports of the product are being sold in the U.S. at less than fair value, in the preliminary determination of its AD investigation. Suspension of liquidation and cash deposit requirements generally take effect Jan. 5, 2026, but Commerce is making the suspension of liquidation and AD cash deposits retroactive to approximately Oct. 7, 2025, for some Korean companies.
Sign up for a free preview to unlock the rest of this article
If your job depends on informed compliance, you need International Trade Today. Delivered every business day and available any time online, only International Trade Today helps you stay current on the increasingly complex international trade regulatory environment.
Commerce is also conducting concurrent antidumping duty and countervailing duty investigations on monomers and oligomers from Taiwan, setting CVD cash deposit requirements in August and AD cash deposit requirements in September (see 2508280037, 2509080043 and 2509190024).
Commerce Finds Critical Circumstances for Some, Sets Retroactive Cash Deposits
Commerce made a finding that two Korean companies under investigation -- Green Chemical Co., Ltd. and Kukdo Chemicals Co. Ltd. -- increased their exports to the U.S. in the run-up to the preliminary determination. This “critical circumstances” finding by the agency means Commerce will retroactively suspend liquidation for these two companies back to 90 days before the preliminary determination, i.e., on or about Oct. 7, 2025.
For all other Korean exporters, including Miwon Specialty Chemical Co., Ltd. and the "all others" companies that aren't under individual investigation, suspension of liquidation and cash deposit requirements take effect Jan. 5, 2026.
AD Suspension of Liquidation and Cash Deposit Requirements
Effective on the dates listed below, Commerce will suspend liquidation, and require AD cash deposits, at the following AD rates:
| Producer | AD Rate | Sus. Liq. |
|---|---|---|
| Green Chemical Co., Ltd. and Green Life Science | 65.72% | 10/07/25 |
| Miwon Specialty Chemical Co., Ltd. | 10.94% | 01/05/26 |
| Kukdo Chemicals Co. Ltd. | 188.01% | 10/07/25 |
| All others | 15.59% | 01/05/26 |
(The period of investigation is 01/01/24 - 12/31/24. See Commerce's notice for more information, including the scope, suspension of liquidation, detailed cash deposit instructions, etc. See 2504240075 for a summary of initiation of this investigation.)