No, not since the '80s.
I've heard there are vacuum tube manufacturers in China and in India, but Google searches do not lead to any useful information.
Thanks for telling me about EI Nis.
Well you can go to any of the B2B websites from google & you will find as many manufacturers & suppliers from china & India who can provide you with reasonable rates. You can post your query through the available query form. Its very simple as I have followed these steps. Hope you don't face any problems.