The Sister Airport agreement, signed on March 25, 2011, outlines a process for the CDA and SAA to share technical, commercial and environmental best practices, and set up joint working groups to exchange ideas in airport management, construction, planning operations and sustainable development.
"It has been a pleasure to have Demi here at the CDA's administration office, sharing best practices and demonstrating how the Sister Airport process works on a professional and personal level," said Rosemarie S. Andolino, CDA Commissioner. "This type of cooperative work exchange, especially at Demi's managerial level, helps further our relationship and information sharing with one of China's major airports."
Yu has observed and worked with many CDA divisions, including Customer Service, Human Resources, Marketing and Communications; Design and Construction;Operations; Safety and Security; Finance; Information Technology and Concessions.

"The CDA takes this intern project seriously. From the top leaders to the managers, they give me so much help. They have shared their knowledge and are very professional," Yu said. "This kind of working atmosphere impresses me deeply."
This is Yu's first visit to Chicago and second trip to the United States. Her first experience was a two-week vacation to the West Coast in July 2011.
Yu said the people here are very friendly, though she found Chicago's downtown area very busy. She has been very impressed with the diversity of cultures and religion.
Her last day at O'Hare will be November 22, 2011.
The Sister Airport exchange program was organized by World Business Chicago and the state-owned Assets Supervision and Administration Commission of Shanghai Municipal Government.
Three other individuals are participating in internships through the ChicagoSisterCity program with Shanghai, China. They areYuan Xiaoying from the Shanghai Jinjiang International Group, working at DePaul University; Chen Yinyun from the Shanghai Shenjiang Group, working at Ariel Capital; and Huang Xinyu from the Shanghai Xiandai Architecture Design Group, working at AS+GG Architecture Firm.
In addition to Shanghai Pudong International Airport, the CDA has Sister Airport agreements with Beijing Capital International Airport Company; Incheon International Airport Corporation; the Airport Authority Hong Kong; Abu Dhabi International Airport and Belgrade International Airport.