How to export TeeChart with Unicode characters to PDF? This option seems doesn't work out of the box. Region settings for non-Unicode applications doesn't help either. I have tested it on TeeChart v2015, latest release.
You may try to export the TeeChart content into a TMetaFile, then render it using our Open Source SynPDF library.
The library supports Font-Fallback and Uniscribe, so has good Unicode abilities.