PARIS — China’s iSpace startup launch-services company successfully placed two satellites, including advertiser-sponsored payloads, into a 300-kilometer orbit on July 25, opening what the company said is a new era in commercial Chinese spaceflight fueled by the private sector.

Two other Chinese commercial launch startups, LandSpace and OneSpace, have made launch attempts in the past year but both have failed. OneSpace in August 2018 said it had completed a financing round of $44 million from five investors: http . . .

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