The city of Chelmsford, England, became a sister city of Wuxi on November 26, 2009.

It is the capital of Essex, and a commercial and shopping center in northeastern England, with the headquarters of several multinational corporations also located there.

The city is the birthplace of radio broadcasting technology, and borders upon Essex University and Colchester University. It is a research center for electronic engineering, financial services, modern communications and other high-end industries and technologies. Furthermore, it also has certain advantages in software animation and cultural creativity, biological medicine, environmental protection, green construction and sustainable and innovative community construction.