notice Published 2025-12-09

Certain Polycrystalline Diamond Compacts and Articles Containing Same; Notice of a Final Determination Finding a Violation of Section 337 and Issuing a Limited Exclusion Order and a Cease and Desist Order; Termination of Investigation

Origins: CN,JP,KR,DE

📌 ETDETA brief — importer impact summary (educational)

Brief takeaway: The ITC has found a Section 337 violation and issued orders that may block importation of certain polycrystalline diamond compacts made by the named respondents.

What changed: According to the notice, the Commission determined that the listed respondents violated Section 337 by importing or selling infringing polycrystalline diamond compacts and articles containing them. The notice states the Commission issued a limited exclusion order against the named respondents and a cease and desist order against SF Diamond USA, Inc., with a bond set at zero percent of entered value during the period of Presidential review, and terminated the investigation.

Who's affected: The notice names polycrystalline diamond compacts and articles containing them that infringe one or more of claims 1, 2, 11, 15 and 21 of U.S. Patent No. 10,508,502. The notice cites specific respondents based in China, South Korea, Germany, Japan, and the United States (including SF Diamond, Iljin entities, Jingrui, New Asia, IDS, CR Gems, Wanlong, Juxin, and Haimingrun). No HTS codes are specified.

What to review:
- Review whether your polycrystalline diamond compacts originate from or are supplied by any of the named respondents.
- Confirm with your broker whether the limited exclusion order may affect your entries.
- Check whether your products could implicate the identified claims of the '502 patent.
- Review the Presidential review period and bond terms with trade counsel.

This is general information, not legal advice and not a compliance determination — confirm specifics with a licensed customs broker or trade counsel.

Official notice

Notice is hereby given that the U.S. International Trade Commission ("Commission") has determined that respondents SF Diamond Co., Ltd. of Henan, China, and SF Diamond USA, Inc. of Spring, Texas (together, "SF Diamond"); Iljin Diamond Co., Ltd. of Seoul, Republic of Korea, Iljin Holdings Co., Ltd. of Seoul, Republic of Korea, Iljin USA Inc. of Houston, Texas, Iljin Europe GmbH of Eschborn, Germany, Iljin Japan Co., Ltd. of Tokyo, Japan, Iljin China Co., Ltd. of Shanghai, China (collectively, "Iljin"); Henan Jingrui New Material Technology Co., Ltd. ("Jingrui") of Henan, China; Zhenzghou New Asia Superhard Materials Composite Co., Ltd. ("New Asia") of Henan, China; International Diamond Services, Inc. ("IDS") of Houston, Texas; CR Gems Superabrasives Co., Ltd. ("CR Gems") of Shanghai, China; Fujian Wanlong Superhard Material Technology Co., Ltd. ("Wanlong") of Fujian, China; Guangdong Juxin Materials Technology Co., Inc. ("Juxin") of Guangdong, China; and Shenzhen Haimingrun Superhard Materials Co., Ltd. ("Haimingrun") of Guangdong, China have violated section 337 of the Tariff Act of 1930, as amended, by importing, selling for importation, or selling in the United States after importation certain polycrystalline diamond compacts and articles containing the same that infringe one or more of asserted claims 1, 2, 11, 15 and 21 of U.S. Patent No. 10,508,502 ("the '502 patent"). The Commission has determined that the appropriate remedies are a limited exclusion order ("LEO") against the above-identified respondents and a cease and desist order ("CDO") against SF Diamond USA, Inc. The Commission has also determined to set a bond in the amount of zero percent (0%) of the entered value of the excluded products imported during the period of Presidential review. This investigation is hereby terminated.

Source: Federal Register · International Trade Commission · Read the official notice ↗

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This update is a general educational summary based on public CBP CSMS / Federal Register information. It is not legal advice, customs broker advice, a final classification, duty determination, entry instruction, or compliance determination. Importers should confirm applicability, effective dates, HTSUS/Chapter 99 reporting, rates, refunds, PSC procedures, and filing instructions with their licensed customs broker, trade counsel, and/or CBP.