Yucheng Delong Additive Co., Ltd. was established in 2010 as a limited liability company. It is located in Lunzhen Industrial Park, Yucheng City, Shandong Province, covering an area of 11,267 square meters with a registered capital of 11 million yuan.

The company's main business scope is the production and sales of refined naphthalene. With an annual output of 8,000 tons of refined naphthalene, it is one of the major domestic manufacturers. Since its inception, the company has placed great emphasis on the development and application of new technologies and processes, focusing on the investment in new equipment and the development of new products to ensure that the products are marketable. By adopting the latest technology to produce high-purity refined naphthalene, the company benefits from a simple process flow, ease of operation, low investment, low cost, low energy consumption, and low pollution. Industrial operations have confirmed that the refined naphthalene produced using this process exceeds the national first-grade refined naphthalene standards (with a minimum purity of 99% and a crystallization point of 79.6°C). The naphthalene yield reaches over 95%, and the production cost per ton of refined naphthalene is reduced by 50% compared to previous costs. The company's products are sold nationwide.  Adhering to the corporate spirit of dedication, innovation, rigor, and integrity, and following the business philosophy of "credibility first, quality first, service first," the company is committed to working sincerely with customers for mutual development.