According to the China Trade Remedy Information Network, on August 19, the United States International Trade Commission (ITC) issued an announcement stating that it had made a final determination under Section 337 regarding Certain Photovoltaic Trunk Bus Cable Assemblies and Components Thereof (Investigation No. 337-TA-1438): the preliminary determination (No. 19) made by the administrative law judge in this case on July 21, 2025, would not be reviewed. Specifically, the motion proposed by the applicant was partially approved, and it was determined that there was no patent unenforceability, as the disputed concealed information lacked "but-for materiality". The administrative law judge believed that there were indeed significant factual issues in other aspects of unenforceability (including serious misconduct) and in the matter of unclean hands, but rejected these allegations.

On February 11, 2025, the United States International Trade Commission (ITC) voted to initiate a Section 337 investigation (Investigation No. 337-TA-1438) into Certain Photovoltaic Trunk Bus Cable Assemblies and Components Thereof.

On January 10, 2025, Shoals Technologies Group, LLC of Portland, Tennessee, filed an application for a Section 337 investigation with the United States International Trade Commission (ITC), claiming that the product, which was exported to, imported from, and sold in the United States, violated the United States Section 337 provisions (infringing United States registered patents No. 12,015,375 and No. 12,015,376), and requesting the ITC to issue a limited exclusion order and a cease and desist order.

Voltage, LLC, located in Chapel Hill, N.C., USA, and Ningbo Voltage Smart Production Co., Ltd., located in Ningbo, Zhejiang, China, are named defendants.