63. Xi 'an Hi-tech Industrial Development Zone is the first national hi-tech zone approved by the State Council in March, 1991, with an area of 679.4 square kilometers. There are 63 restaurants in Xi 'an Hi-tech Zone, which provide group meal delivery services such as Chinese food, western food, Korean food, Japanese food and fast food respectively, and do their best to provide logistics support for enterprises that have resumed production.