https://techcrunch.com/2018/01/31/samsung-confirms-asic-chips/

Fresh from toppling Intel as the planet’s biggest seller of chipsets, Samsung has confirmed that it has begun manufacturing ASIC chips which are used to mine bitcoin, ether and other cryptocurrencies.

“Samsung’s foundry business is currently engaged in the manufacturing of cryptocurrency mining chips. However we are unable to disclose further details regarding our customers,” a company spokesperson told TechCrunch.