Beijing North Da Jia Bang Technology Co., Ltd., also known as "North Da Jia Bang", is a national high-tech enterprise based in Beijing's Zhongguancun Science Park. The company specializes in the research, production, and application development of nanophotonic materials, including quantum dots, organic luminescent materials, and others. With a production base of over 40 mu in Weicheng, Hebei Province, the company has modernized factory buildings and production equipment, capable of producing ton-level quantum dot-related products. North Da Jia Bang's "1+N" development strategy focuses on the application of quantum dots in display fields, as well as the development of related products for lighting, biomedicine, solar cells, and other industries. The company offers a range of products, including quantum dot powder, concentrated liquid, photoresist, UV adhesive, and OLED materials.