I got Naura's R&D number from this link:
Reading it, again, it's seems I used the R&D expense for its parent company BOE. Just now, I looked for Naura's financial report, but couldn't find the actual R&D expense line item. I'll dig a bit more when I have time later today.
All other R&D expenses I obtained from actual financial reports so should be accurate.
FYI. So it looks like Naura's R&D expense (last 4 quarters) is $1.453B RMB (inestead of $10B RMB) ==> $0.215B
Here are 2021 R&D expenses for the major fabs for you to draw your own interpretation.:
Intel $15.2B
Samsung $6.5B
tsmc $4.46B
SK Hynix $3.098B
Micron $2.66B
SMIC $0.638B
GF $0.478B
UMC $0.466B
No data for Huahong Group, CXMT, & YMTC because the latter two are not publicly traded so data to draw from and for the first, its R&D is <$0.2B but his does not include what's spent by its subsidiary (Huali). All three have much smaller revenue than SMIC so not expected to spend anywhere close to SMIC.
ASML $2.55B
AMAT $2.485B
LAM $1.49B
KLA $0.928B
TEL $0.677B
Naura ~$0.215B
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