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[@roberttollast](/creator/twitter/roberttollast)
"Cant read all the code on the STMicroelectronics MCU (microcontroller) but you can make out the country production code: CHN suggesting Hua Hong Semiconductor runs the foundry"  
[X Link](https://x.com/roberttollast/status/1970777735716024340) [@roberttollast](/creator/x/roberttollast) 2025-09-24T09:10Z 4394 followers, XXX engagements