The Long March-8 Y6 launch vehicle (长征八号) launched the fifth batch of 18 SpaceSail satellites from the first launch pad of the Hainan Commercial Space Launch Site (海南商业航天发射场), Wenchang International Aerospace City, Hainan Province, China, on 11 March 2025, at 16:38 UTC (12 March, at
00:38 local time). The SpaceSail Constellation (千帆星座, Qianfan Constellation) is developed by Shanghai SpaceSail Technologies Co., Ltd. to “provide global users with low-latency, high-speed and ultra-reliable satellite broadband internet services”.