https://www.businesswire.com/news/home/20190415005837/en/Samsung-Successfully-Completes-5nm-EUV-Development-Greater/?feedref=JjAwJuNHiystnCoBq_hl-cFcUWvK4NSyDWO6DSHmLQqqcp-o_pnudlUwsb5apQ1S4gUE65BTfjH3-pSuqdv0gW3cb3F4oTIgUqCPafFkgu6AeRucmCP4ZHknI_zC0f97
 
Samsung Electronics Co., Ltd., a world leader in advanced semiconductor technology, today announced that its 5-nanometer (nm) FinFET process technology is complete in its development and is now ready for customers' samples. By adding another cutting-edge node to its extreme ultraviolet (EUV)-based process offerings, Samsung is proving once again its leadership in the advanced foundry market. Samsung foundry's EUV-based process technologies are currently being manufactured at the S3-line in Hwaseong, Korea. Additionally, Samsung will expand its EUV capacity to a new EUV line in Hwaseong, which is expected to be completed within the second half of 2019 and start production ramp-up for next year.
 
So in my opinion both Samsung and TSMC are the first foundaries to make 5nm processes available to their partners. Next gen mobile SoC chips will be available for 5nm manufacturing.