Puyang Refractories Group Co., Ltd. (Puyang Refractories Group Co., Ltd., PRCO) is currently one of the main domestic functional refractory materials, shaped and amorphous refractory materials manufacturers, and is the main domestically suppliers and service providers of refractory materials products for the steel industry.

Punai Co., Ltd.'s main business is the research, production and sales of fixed, amorphous refractory materials, functional refractory materials and supporting institutions, and undertakes the overall contracting business of various thermal equipment refractory materials design, installation, construction services, etc. It is currently the world's steel industry. More than 70 of the top 100 companies provide high-quality products and perfect services. The main products include breathable bricks, seat bricks, bulk materials, skateboard water outlets, three major parts, magnesium carbon/aluminum magnesium carbon, and more than 200 varieties of refractory materials, which are widely used in steel and Cement, glass, electricity, petrochemical, nonferrous metals and other industries, and exported to countries and regions such as the Americas, Europe, Southeast Asia, Africa, and the Middle East.

Punai Co., Ltd.'s predecessor, Puyang County Refractory Materials Factory, was established in 1988. On April 25, 2008, Punai Co., Ltd. (stock code: 002225) was listed on the Shenzhen Stock Exchange. Currently, Punai Co., Ltd. has 11 wholly-owned subsidiaries, 9 holding subsidiaries, 2 subsidiaries, 5 branches, and 3 shareholders. Punai Co., Ltd. has always been committed to the development and promotion and application of new technologies and new products of refractory materials, and is a nationally recognized high-tech enterprise. Since 1998, it has successively passed the ISO 9001 quality management system, ISO 14001 environmental management system and ISO 45001 occupational health and safety management system certification.

As of the end of 2022, Pu Nai has a total of 476 independent intellectual property rights and various valid technical patents in the refractory materials industry, including 64 invention patents and 63 innovation projects. 43 new and improved products were successfully launched on the market. It has a nationally recognized enterprise technology center, a high-temperature ceramic material test and testing center recognized by the state (CNAS), a provincial high-temperature ceramic material engineering technology research center, a technical institute, and a postdoctoral research workstation.

Punai Co., Ltd. closely monitors the development trends of the global high-temperature industry and refractory materials field, pays attention to the introduction of scientific and technological talents, market research and the development of high-tech products, and has successively been blast furnaces, electric furnaces, converters, ladles, tundries, industrial furnaces in the metallurgical industry, Breakthrough progress has been made in the development of refractory materials such as furnaces and kilns in non-ferrous metal smelting, petrochemicals, electricity, and building materials industries.