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An advertisement board for the Belt and Road Initiative is seen in Darwin, Australia. [Photo courtesy of Daryl Guppy]
Among top 500 firms, the key technologies of 402 companies were mainly developed independently, accounting for 80.4 percent of the total. The number of valid patents obtained by the top 500 firms increased by 8.46 percent in 2019, while the figure for international patents also grew significantly.
An employee gets back to work at the Huigu Industrial Park in East China' Jiangxi province on March 2, 2020. [Photo/Xinhua]
An AWS representative did not have an immediate update on the details of the change.
Among those selected companies are SpaceX, Boeing, Lockheed Martin, Northrop Grumman and Blue Origin, many of which have already been NASA's contractors.
