PVTIME – On 17 June 2025, the US International Trade Commission (ITC) announced a partial final determination in the Section 337 investigations (Docket Nos. 337-TA-1422, 337-TA-1425) into certain TOPCon solar cells, modules, panels, components, and downstream products. The ITC declined to review an administrative law judge’s 23 May 2025 initial determination (No.15), approving the change of applicant from Trina Solar US Manufacturing Module 1, LLC to T1 G1 Dallas Solar Module(Trina) LLC.
On 13 February 2025, the ITC issued a final determination terminating the investigation against listed respondent Recurrent Energy Development Holdings, LLC of Austin, TX, based on the applicant’s withdrawal, following an unreviewed 14 January 2025 initial determination (No.7).
In a 3 February 2025 announcement, the ITC made a partial final determination in the same investigations, terminating the probe against India’s Adani Green Energy Ltd due to applicant withdrawal (based on 14 January 2025 initial determination No.8) and adding Mundra Solar PV Ltd as a listed respondent.
On 21 January 2025, the ITC approved the consolidation of 337-TA-1422 and 337-TA-1425, based on unreviewed 20 December 2024 initial determinations (No.4 in 1422, No.5 in 1425). Scheduled for completion by 20 April 2026, the consolidation cites identical applicants, domestic industry claims, patents, and product scopes to optimise resource use, with 1422 designated as the lead case.
The proceedings began on 30 September 2024, when Trina Solar (US), Inc. (Fremont, CA), Trina Solar US Manufacturing Module 1, LLC (Wilmer, TX), and China’s Trina Solar Co., Ltd. filed a Section 337 complaint alleging infringement of US Patents 9,722,104 and 10,230,009, seeking a limited exclusion order and cease-and-desist orders. Named respondents included Runergy USA Inc., Runergy Alabama Inc., Jiangsu Runergy New Energy Technology Co., Ltd., Adani Solar USA Inc., and Adani Green Energy Ltd.
On 4 December 2024, the ITC voted to initiate 337-TA-1425 into related TOPCon products. Earlier, on 23 October 2024, the same Trina entities filed another complaint against CSI Solar Co., Ltd. (China), Canadian Solar Inc. (Canada), and affiliates, asserting the same patent claims.
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