I refer to this link https://developer.arm.com/Tools%20and%20Software/Keil%20MDK#Editions
There are Special Editions
Could this editions use for commercial?
Thanks,
Eric
In contrast to the MDK Community Edition, the "MDK for STMicroelectronic Cortex/M0/M0+" edition can be used for commercial use. As you already found out, the license is paid by STMicroelectronics.
Thanks a lot for your conrifmation.