Er Dong Zhang

Peking University provides post-secondary education services. It offers undergraduate and graduate courses. It provides courses such as basic and applied sciences, social sciences and the humanities, sciences of medicine, management, and education. The company was founded by JiaNai Sun in 1898 and is headquartered in Beijing, China.

Shanghai University of Finance and Economics engages in the provision of educational services. It offers courses under the following school and departments: business, accountancy, finance, international business administration, economics, public economics and administration, humanities, law, information management and engineering, statistics, foreign languages, mathematics, international cultural exchange, professional and international education and continuing education. The company was founded in 1917 and is headquartered in Shanghai, China.

Beijing Aitekang Medical Technology Co., Ltd. engages in the development and sale of medical equipment. Its products include disposable sterile surgical seam-free zipper, postpartum hemorrhage emergency balloon, cervical dilatation balloon, and postpartum hemostatic balloon. The company was founded in 2004 and is headquartered in Beijing, China.

Linkeychain Technology (Shanghai) Co., Ltd. engages in the provision of solution services. It focuses on providing financial industry and industrial entity the technical service, program consulting, and program landing. This includes banking, securities, insurance, food, medicine, and logistics. Its business scope includes technology development, technology transfer, technical consulting, and technical services of intelligent technology, computer technology, network technology, and communication technology; e-commerce; ticketing agency; business consulting; conference and exhibition services; exhibition services, market information consultation and investigation; hotel management; and catering enterprise management. The company was founded by Yin Ming Pang on October 18, 2017 and is headquartered in Shanghai, China.

Tianjin Xingyan Yunhui Network Technology Co., Ltd. engages in the provision of technology solutions. The company was founded on December 14, 2018 and is headquartered in Tianjin, China.