Gelonghui February 23 丨Dinglong Co., Ltd. (300054.SZ) said during an on-site visit from investors on February 22, 2023, that at present, the company has deployed nearly 40 types of CMP polishing liquid products with various process series, starting with grinding particles as the core raw material upstream of CMP polishing liquid. The introduction of various products to major domestic wafer customers is in full swing, and various products are being verified by clients. At the same time, the company has achieved independent preparation of upstream raw materials for polishing liquid, which ensures the safety and stability of the polishing liquid product supply chain. At present, the first phase automated production workshop for polishing liquid has been built at the Wuhan headquarters, and the second phase of polishing liquid production expansion plan in the Xiantao plant aims to start production and use in 23. The overall project is progressing smoothly, and it is expected that the product will be released in 2023.