Shandong Guansen Polymers Materials Science and Technology INC. with stock code ：871762 (former Shandong Guansen Insulation Products CO.,LTD., founded in March of 2014) is located on No. 63 mingyuan road, hekou blue economic development zone, Dongying city, Shandong province. Guansen is a specialized scientific and technological enterprise with research, development, production and sales as a whole；specialized in producing polyimide material synthesis monomer 4,4-Oxydianiline.

The company has always adhered to the spirit of concentration, endeavor, innovation and win-win, and is committed to creating first-class fine chemicals to help the development of new materials of polyimide polymers. In June of 2016, it has passed ISO 9000 quality management system (Registration Number: 03116Q20327ROM), ISO14000 environmental management system (Registration Number: 03116E20148ROM), OHSAS18000 occupation health and safety management system (Registration Number: 03116S10139ROM) audit and obtained the certificate, has consolidated the management foundation, refined the responsibility, and strengthened on-site supervision and management. In December 2016, the company was awarded "Shandong new high-tech enterprise"（Certificate No.：GR201637000753）. In June 2017, it was honored as "municipal scientific and technological enterprise". In September 2016, it was honored as "municipal intellectual property protection enterprise". In February 2017, the company completed the shareholding restructuring, and had successfully listed on Three board on August 2 in 2017.

Existing products are our own intellectual property rights. Among them, there are 1 item of the synthetic route patent, 8 items of the key process and main equipment of the new patent. Setting up a joint laboratory with Harbin Institute of Technology is to provide technical support for quality improvement, process improvement, development of new products and development of new materials for polyimide polymers. The future development direction of the company is to focus on the polyimide polymer monomer synthesis of new material industry，to realize the industrialization from New materials of polyimide polymers with different properties.