Only 4 get away! Jinko, Jingao, Tianhe … 43 photovoltaic enterprises were accused of infringement

According to the China Trade Relief Information Network, on July 24, the United States International Trade Commission (ITC) announced that it had made 337 partial final rulings on specific tunneling oxide passivation contacts (TOPCon) solar cells, modules , panels, components and downstream products.

Based on the withdrawal of the applicant First Solar, the investigation of the listed defendant, Philadelphia Solar USA Inc. of the United States and Trina Solar Energy (Changzhou) Technology Co., Ltd. was terminated.

It is understood that on February 24, 2026, First solar, an American photovoltaic company, filed 337 applications for investigation with the United States International Trade Commission (ITC) on the grounds of infringement of TOPCon technology patents. It claims that the product exported to the United States, imported in the United States and sold in the United States violates Section 337 of the United States and requests the ITC of the United States to issue a general exclusion order or a limited exclusion order or a prohibition order.

It should be noted that First Solar's request for investigation involves 47 photovoltaic enterprises in China, Germany, India, Japan and South Korea. Among them, there are 29 enterprises with Chinese background (including overseas subsidiaries), namely Runyang Stock (5), Atlas (6), Trina Solar Energy (5), Jingao Technology (5) and Jingke Energy (8).

According to public information, the TOPCon patented technology involved in the case was acquired by First Solar through the acquisition of Tetrasun, with the patent number US9130074B2. (For details, please click: Jinko, Jingao, Tianhe, Atlas … 47 photovoltaic companies were accused of patent infringement!

On March 26, the US International Trade Commission (ITC) launched a 337 investigation into the above products.

On May 28 and June 10, the U.S. International Trade Commission (ITC) issued 337 partial final rulings: BYD America LLC and Tesla, Inc were approved as the third party (intervene) respectively.

Then on June 24, the United States International Trade Commission (ITC) again made a final ruling of 337 parts: To terminate the investigation in this case against the listed accused, the Mundra Solar Energy Ltd. Of India and the Adani Green Energy Ltd. Of India.

In addition to the termination of the investigation into the Philadelphia Solar USA Inc. Of the United States and Trina Solar Energy (Changzhou) Technology Co., Ltd., 43 photovoltaic enterprises are still under investigation in this case.