I checked, and "trademan" doesn't seem to exist; it's tradesman. Don't you use a dictionary, MaxM? There are many online, quite useful... "hyperdictionary", "Cambridge", Merriam Webster", ...
In one of my dictation dictation during a lesson my teacher said me that 'trademan' is the correct word but I know that I have seen "tradesman" in my dictionary.So I decided to ask you which word is correct.