Group 1 - The core viewpoint of the article is that Tianqi Materials (002709) is currently in the pilot testing stage for its sulfide route solid-state electrolyte, indicating ongoing development in this technology [1] - The company has acknowledged that there are certain technical barriers between different production processes, which may impact scalability and efficiency [1] - Additionally, the company has confirmed its capability in lithium iron phosphate battery recycling, showcasing its involvement in the battery supply chain [1]