From January to July 2021, China Salt Changzhou Chemical Co., Ltd. applied for 6 invention patents and 1 utility model in terms of new product development, production process improvement and quality improvement. These patents are the achievements of scientific research investment of Zhongyan Changhua, and will play a positive role in the high-quality development of the company after being authorized. 

In recent years, sinosalt Changhua has continuously increased its investment in new product development, production process improvement and quality improvement, promoted the improvement of the core competitiveness of the enterprise, and actively applied for patents for the obtained achievements to protect the company's intellectual property rights. At present, there are still 27 patents pending for approval. 

So far, Zhongyan Changhua has 27 authorized patents, including 6 invention patents.