Samsung finished development phase of ASICs/mining chips and entered production phase in Jan 2018.

https://twitter.com/CryptoKorean/status/958281796541730816?ref_src=twcamp%5Ecopy%7Ctwsrc%5Eandroid%7Ctwgr%5Ecopy%7Ctwcon%5E7090%7Ctwterm%5E0 via /r/Bitcoin http://bit.ly/2DR2pKg