Interesting, according to this Chinese article Dongxin poured $500 million to research this GPU and R&D company almost went bankrupt in 2024.
https://xueqiu.com/2156146731/335433238
Also according to this they will try to launch production in 2026.
https://en.gamegpu.com/iron/Lisuan-has-unveiled-the-first-6-nm-GPU-in-China-with-proprietary-TrueGPU-architecture