I work for an American company, in the US. We have a large branch in Japan.
What is the etiquette with name usage in written communication, with fellow employees I don't know (don't work with normally)? I'm not Japanese but am familiar with the culture, and it feels extremely weird for me to use their first name.
e.g. for 'Hajime (first name) Saito (surname)' do I use:
- Hajime (sounds really rude)
- Hajime Saito-san?