# Notice of Extension of the Deadline for Determining the Adequacy of the Antidumping and Countervailing Duty Petitions: Lithium Hexafluorophosphate From the People's Republic of China
**AGENCY:**
Enforcement and Compliance, International Trade Administration, Department of Commerce.
**DATES:**
Applicable March 25, 2026.
**FOR FURTHER INFORMATION CONTACT:**
Jacob Waddell at (202) 482-1369 (China AD) and Carter Sherwin at (202) 482-4260 (China CVD), AD/CVD Operations, Enforcement and Compliance, International Trade Administration, U.S. Department of Commerce, 1401 Constitution Avenue NW, Washington, DC 20230.
**Extension of Initiation of Investigations**
**The Petitions**
On March 5, 2026, the U.S. Department of Commerce (Commerce) received antidumping and countervailing duty petitions on imports of lithium hexafluorophosphate (LiPF <sub>6</sub> ) from the People's Republic of China (China), filed by Mexichem Fluor Inc. dba Orbia Fluor & Energy Materials (the petitioner). [^1]
[^1]*See* Petitioner's Letter, “Petitions for the Imposition of Antidumping and Countervailing Duties,” dated March 5, 2026 (Petitions).
**Determination of Industry Support for the Petitions**
Sections 702(b)(1) and 732(b)(1) of the Tariff Act of 1930, as amended (the Act), require that a petition be filed by or on behalf of the domestic industry. To determine that the petition has been filed by or on behalf of the industry, sections 702(c)(4)(A) and 732(c)(4)(A) of the Act require that the domestic producers or workers who support the petition account for: (i) at least 25 percent of the total production of the domestic like product; and (ii) more than 50 percent of the production of the domestic like product produced by that portion of the industry expressing support for, or opposition to, the petition. Moreover, sections 702(c)(4)(D) and 732(c)(4)(D) of the Act provide that, if the petition does not establish support of domestic producers or workers accounting for more than 50 percent of the total production of the domestic like product, Commerce shall: (i) poll the industry or rely on other information in order to determine if there is support for the petition, as required by subparagraph (A); or (ii) if there is a large number of producers, determine industry support using a statistically valid sampling method to poll the industry.
**Extension of Time**
Sections 702(c)(1)(A) and 732(c)(1)(A) of the Act provide that within 20 days of the filing of an antidumping or countervailing duty petition, Commerce will determine, *inter alia,* whether the petition has been filed by or on behalf of the U.S. industry producing the domestic like product. Sections 702(c)(1)(B) and 732(c)(1)(B) of the Act provide that the deadline for the initiation determination, in exceptional circumstances, may be extended by 20 days in any case in which Commerce must “poll or otherwise determine support for the petition by the industry.” Because it is unclear whether the industry support criteria have been met, Commerce has determined it should extend the time period for determining whether to initiate the investigations in order to further examine the issue of industry support.
Commerce will need additional time to gather and analyze additional information regarding industry support. Therefore, it is necessary to extend the deadline for determining the adequacy of the Petitions by an additional 20 days. As a result, in accordance with sections 702(c)(1)B) and 732(c)(1)(B) of the Act, Commerce's initiation determination will now be due no later than April 14, 2026.
**International Trade Commission Notification**
Commerce will contact the U.S. International Trade Commission (ITC) and will make this extension notice available to the ITC.
Dated: March 25, 2026.
Christopher Abbott,
Deputy Assistant Secretary for Policy and Negotiations, performing the non-exclusive functions and duties of the Assistant Secretary for Enforcement and Compliance.