"Because the drone flew at an altitude of less than 100 meters in the Beijing suburb, Alibaba didn’t have to report to Beijing’s aviation authorities in advance, the report said."
http://www.marketwatch.com/story/alibaba-tries-out-drone-delivery-in-china-2015-02-04
http://www.marketwatch.com/story/alibaba-tries-out-drone-delivery-in-china-2015-02-04