Question similar to How to address a Korean co-worker?
When interacting in direct chat messages in English with co-workers (software developers like me) from Chinese offices ; is it rude to address them with their first name, and how could I greet them in a way both polite and not too distant?
When referring to Chinese co-workers in chat channels shared with other members, is it polite to use their full name, or are there more appropriate wordings?