Re: "vowed to do what it can to make the open-source RISC-V ISA worthy"
They won't be investing in RISC-V though, they have their own home grown Loongson architecture that is already getting the investment to turn it into an HPC contender.
They will only be using RISC-V for embedded stuff to replace the embedded uses of ARM and remove any possible source of western arm twisting. They won't be needing, let alone creating, any high performance RISC-V cores.