Group 1 - The State Intellectual Property Office has granted a patent for a "Petroleum Coke Drying and Calcination System" to Shijiazhuang Shangtai Technology Co., Ltd., Shanxi Shangtai Lithium Battery Technology Co., Ltd., and Shijiazhuang Nasili New Energy Materials Co., Ltd. The patent authorization announcement number is CN121163231B, with an application date of November 2025 [1] - Shijiazhuang Shangtai Technology Co., Ltd. was established in 2008 and is primarily engaged in the manufacturing of computers, communications, and other electronic devices. The company has a registered capital of 2,608.0235 million RMB and has invested in 5 enterprises, participated in 113 bidding projects, and holds 83 patents [1] - Shanxi Shangtai Lithium Battery Technology Co., Ltd. was founded in 2017 and focuses on the manufacturing of electrical machinery and equipment. The company has a registered capital of 1,250 million RMB, has invested in 2 enterprises, participated in 31 bidding projects, and holds 44 patents [1] Group 2 - Shijiazhuang Nasili New Energy Materials Co., Ltd. was established in 2025 and is engaged in the manufacturing of chemical raw materials and products. The company has a registered capital of 10 million RMB, has participated in 2 bidding projects, and holds 5 patents [2]