On August 17, the US International Trade Commission voted to launch a 337 investigation into specific transformers and their components. On July 16, 2026, the US Ayr Energy filed a 337 investigation application with the US ITC, claiming that the product exported to, imported, and sold in the US violated US Section 337 and requested the US ITC to issue a limited exclusion order and injunction. India's Zetwerk Manufacturing, US Zetwerk Manufacturing, India's KRYFS Power Components, and US Unimacts Global were listed as defendants.

On August 17, the US International Trade Commission voted to launch a 337 investigation into specific transformers and their components. On July 16, 2026, the US Ayr Energy filed a 337 investigation application with the US ITC, claiming that the product exported to, imported, and sold in the US violated US Section 337 and requested the US ITC to issue a limited exclusion order and injunction. India's Zetwerk Manufacturing, US Zetwerk Manufacturing, India's KRYFS Power Components, and US Unimacts Global were listed as defendants.