Zhejiang Jingsheng Mech Electric

Two major domestic photovoltaic equipment suppliers are fighting a patent battle overseas. Liancheng CNC announced that its subsidiary Liancheng Crystal Technology has sued Jingsheng Mechanical & Electrical in the United States, claiming that some crystal growth equipment-related business sold by Jingsheng Mechanical & Electrical in the US falls within the protection scope of Liancheng Crystal's patented technology, infringing its legal rights, and is demanding that the infringement stop and corresponding compensation be paid. Jingsheng Mechanical & Electrical responded in an announcement that the technical methods used in its products are completely different from those in the patents involved, that there is no evidence its products infringe the patents, and that it will actively defend itself. The patents involved are titled "Seed lifting and rotating system for use in crystal growth," with patent numbers US11,255,024 B2 and US11,814,746 B2, and Liancheng Crystal is the legal patent holder. Liancheng CNC and Jingsheng Mechanical & Electrical are equipment suppliers to LONGi Green Energy and TCL Zhonghuan respectively. Both companies place great emphasis on technological innovation and patent portfolios. As of June 30, 2026, Liancheng CNC and its holding subsidiaries had accumulated 1,025 patents, while Jingsheng Mechanical & Electrical and its subsidiaries had accumulated 1,266 valid patents. There are reports that the case involves Jingsheng Mechanical & Electrical's US customer Tesla, but neither company has given a clear response to reporters.

Liancheng Crystal Technology, a wholly owned subsidiary of Liancheng CNC, has filed a patent infringement lawsuit against Jingsheng Mechanical & Electrical in the Marshall Division of the US District Court for the Eastern District of Texas, alleging that certain Czochralski single-crystal growth equipment sold in the United States infringes two US patents, US 11,255,024 B2 and US 11,814,746 B2, both titled "Seed Lifting and Rotation System for Crystal Growth." Liancheng Crystal Technology has put forward seven claims, including a finding of infringement, damages of no less than a reasonable patent royalty, enhanced damages if willful infringement is found, and a permanent injunction barring Jingsheng Mechanical & Electrical from continuing to sell or import the single-crystal furnaces at issue in the United States. Jingsheng Mechanical & Electrical responded the same day, saying it has not yet received formal court documents, that the technical methods used in its products are entirely different from those in the patents at issue, and that it will actively defend itself if it receives formal documents. The court hearing the case is known for its fast-paced trials and friendliness to patent holders. According to Lex Machina's 2025 Patent Litigation Report, the Eastern District of Texas ranked first among all US patent litigation venues for two consecutive years in 2023 and 2024. In the four trading days after news of the lawsuit emerged, Jingsheng Mechanical & Electrical's share price fell from 42.3 yuan to 38.27 yuan, a cumulative decline of about 9.5 percent, wiping out roughly 5.8 billion yuan in market value.

Jingsheng Mechanical & Electrical released its 2026 interim report, with net profit attributable to the parent company of 232 million yuan, down 63.66% from the same period last year. Total operating revenue was 3.452 billion yuan, down 40.47% year on year. Net cash inflow from operating activities was 1.366 billion yuan. The latest gross margin was 30.42%, and diluted earnings per share were 0.18 yuan, down 63.27% year on year. The company's latest asset-liability ratio was 36.45%, up 4.59 percentage points from the previous quarter.