连云港强邦石英制品有限公司

Lianyungang Qiangbang Quartz Products Co., Ltd. (连云港强邦石英制品有限公司) is a Chinese company engaged in the manufacture of quartz products. Its name indicates a focus on quartz-based materials, which are typically used in applications such as lighting, electronics, semiconductors, and industrial components. The company is based in Lianyungang, Jiangsu Province, a region known for quartz and silica resources. No verified information is available in the supplied evidence regarding its founding, ownership, products, or market position. This entry should be reviewed and expanded once reliable sources are available.

• 2025

  Lianyungang Qiangbang Quartz Products convicted of trade secret infringement, fined RMB 2.7 million

  On December 31, 2025, Quartz Co. and its controlling subsidiary Lianyungang Qiangbang Quartz Products received a criminal judgment from the Lianyungang Intermediate People's Court of Jiangsu. Qiangbang was convicted at first instance of infringing trade secrets and fined RMB 2.7 million. Quartz Co. was the victim unit. Qiangbang was criminally punished for facts predating the company's acquisition. After the judgment takes effect, Quartz Co. will pursue civil liability against relevant parties under an agreement with Duan Jingqiang, Duan Jingbang and Qiangbang.

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• 2025-12-31

  Quartz Co. subsidiary Lianyungang Qiangbang convicted of trade secret infringement, fined RMB 2.7 million[1]Lianyungang Qiangbang Quartz Products convicted of trade secret infringement, fined RMB 2.7 millionnbd.com.cn

  On December 31, 2025, Quartz Co. and its controlling subsidiary Lianyungang Qiangbang Quartz Products received a criminal judgment from the Lianyungang Intermediate People's Court of Jiangsu. Qiangbang was convicted at first instance of infringing trade secrets and fined RMB 2.7 million; Quartz Co. was the victim unit, and Qiangbang was criminally punished for facts predating the company's acquisition. After the judgment takes effect, Quartz Co. will pursue civil liability against relevant parties under an agreement with Duan Jingqiang, Duan Jingbang and Qiangbang.

1. 1Lianyungang Qiangbang Quartz Products convicted of trade secret infringement, fined RMB 2.7 millionnbd.com.cn