凯盛新材：目前公司是全球知名的氯化亚砜生产企业

Group 1 - The core viewpoint of the article is that Kaisheng New Materials is a globally recognized producer of thionyl chloride, with a large production scale and high market awareness [2] - The company’s thionyl chloride products are widely used in various fields, including pesticides, pharmaceuticals, dyes, food additives, and lithium batteries [2]