This is the first launch of the BeiDou satellites in 2018, which will see intensive launches throughout the year.
"The intensive launches will pose a great challenge. We must exercise strict control over quality specifications to ensure each of them is a success," Yang said.
Aiming to promote international use, China will move to incorporate BeiDou into the international satellite navigation system, enhance international cooperation, and make it compatible with GPS from the United States, Russia's GLONASS, and the European Union's Galileo, he said.
The satellites and the rocket for today's launch were developed by the innovation academy for microsatellites at the Chinese Academy of Sciences and China Academy of Launch Vehicle Technology, respectively.
Named after the Chinese term for the Big Dipper, the BeiDou project was formally launched in 1994. It began to serve China in 2000 and the Asia-Pacific region at the end of 2012.
By around 2020, when the BDS goes global, it will have more than 30 satellites.
The Belt and Road Initiative (BRI) is multibillion dollar project started by China to build, roads, ports, railway and other infrastructure projects in different parts of the world to expand its global influence.
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