➀ SMIC has been producing 7-nanometer chips since 2021 and is now developing 5-nanometer chips using alternative methods like quadruple patterning. ➁ Despite US sanctions, SMIC has received significant government support and subsidies to advance its semiconductor technology. ➂ SMIC's progress in chip manufacturing positions it as a key player in China's quest for semiconductor self-sufficiency, though challenges remain in achieving high yields and accessing advanced tools.