惠城环保：回收的废催化剂中含有稀土元素，提取的稀土元素主要用于生产资源化综合利用产品，如FCC催化剂

Core Viewpoint - The company, Huicheng Environmental Protection (300779.SZ), is involved in the recovery of rare earth elements through its waste catalyst treatment process, utilizing proprietary technology for resource utilization [1]. Group 1 - The company has confirmed that its business includes the recovery of rare earth elements from waste catalysts [1]. - The extracted rare earth elements are primarily used in the production of resource utilization products, such as new FCC catalysts [1].