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ITCJuly 17, 2026·DN-3925·PRE-INSTITUTION COMPLAINT FILED

Certain Transformers and Components Thereof

U.S. International Trade Commission

Holding

Ayr Energy, Inc. filed a Section 337 complaint targeting certain transformers and components thereof imported or sold by Zetwerk Manufacturing Businesses Private Limited, Zetwerk Manufacturing USA Inc., KRYFS Power Components Ltd., and Unimacts Global, LLC. The Federal Register notice does not identify the asserted patents; Ayr seeks a limited exclusion order, cease and desist orders, and bonding during the Presidential review period.

Why It Matters

The complaint concerns transformer technology and components used in U.S. electrical infrastructure and power systems, an area with potential grid-reliability and supply-chain significance. The Commission is soliciting public-interest comments on how exclusionary relief could affect public health and welfare, competitive conditions, U.S. production of like or directly competitive articles, replacement capacity, and U.S. consumers.

Full Summary

Ayr Energy, Inc. filed a Section 337 complaint targeting certain transformers and components thereof imported or sold by Zetwerk Manufacturing Businesses Private Limited, Zetwerk Manufacturing USA Inc., KRYFS Power Components Ltd., and Unimacts Global, LLC. The Federal Register notice does not identify the asserted patents; Ayr seeks a limited exclusion order, cease and desist orders, and bonding during the Presidential review period. The complaint concerns transformer technology and components used in U.S. electrical infrastructure and power systems, an area with potential grid-reliability and supply-chain significance. The Commission is soliciting public-interest comments on how exclusionary relief could affect public health and welfare, competitive conditions, U.S. production of like or directly competitive articles, replacement capacity, and U.S. consumers. complainant: Ayr Energy, Inc. proposed respondents: Zetwerk Manufacturing Businesses Private Limited; Zetwerk Manufacturing USA Inc.; KRYFS Power Components Ltd.; Unimacts Global, LLC products targeted: certain transformers and components thereof asserted patents: not identified in the Federal Register notice provided relief sought: limited exclusion order, cease and desist orders, and bond during the 60-day Presidential review period

Key Points

  • complainant: Ayr Energy, Inc.
  • proposed respondents: Zetwerk Manufacturing Businesses Private Limited; Zetwerk Manufacturing USA Inc.; KRYFS Power Components Ltd.; Unimacts Global, LLC
  • products targeted: certain transformers and components thereof
  • asserted patents: not identified in the Federal Register notice provided
  • relief sought: limited exclusion order, cease and desist orders, and bond during the 60-day Presidential review period
infringementdomestic industryexclusion ordercease & desist

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