In reply to cb294:
I was lucky enough to hang out with Edu and his dad and brother while they were working this. He bolted it in March 2018, then spent from end of October 2018 to now working towards a one-day full ascent. Incredible determination and focus, living in a tiny Chinese village for nearly 6 months and hiking up the arch almost every day through some awful weather.
They employed some locals to carry 1500 meters! of static rope up to the Great Arch, which then was placed hanging down at various way stations - some in hanging caves and some on portaledges - from which Edu was belayed. After a pitch, the second would rap off about 150 meters - and then jumar back up to the next station. After his dad hurt his shoulder in a hiking fall they even got an electric rope ascender to get him up to belay.
Edu's Dad (67) they call "Novato" - "the beginner" as he only climbs 8b+ nowadays.
Incidentally Tara Kerchner used Edu's static lines to film Jonathan Siegrist on Lost in Translation, third ascent - the video should be out fairly soon and worth a watch. The Great Arch really is an awe inspiring place.
If anyone fancies a trip to Getu, feel free to contact me for local information. Not the easiest place to get to, but truly world class.