Literally every open source RISC-V Chip, SoC and Board I know are Chinese, aside from SiFive. Alibaba T-Head Xuantie C9-series and E9-series CPU cores, StarFive JH7110 SoC, Alibaba T-Head TH1520 SoC, SOPHON SG2042 SoC, StarFive JH8100 SoC (TBA), several RISC-V boards from Milk-V, BananaPi and SiPeed which are state of the art RISC-V boards.
I think US are the ones doing less.
Edit: Just realized SiFive was US based, not Chinese, so edited it out.
Yes, but I'm only talking about Chinese ones here. And considering just the open source boards, as I did, SiFive only has their Freedom series chips and boards, and their contributions to the Rocket Chip project.
All the Chinese ones I listed are open source designs.
An open source ISA is a collaborative effort, and it contains several members, not just from the US. And it was inevitable either way. Going against who uses an open source an open source ISA is against open source, and going against open source is capitalist greed.
I won't be debating that, there are plenty of resources to read on it and it's a big topic if you are so deeply opposed to it.
I think US are the ones doing less.
Edit: Just realized SiFive was US based, not Chinese, so edited it out.