I think having business trip is not only meeting the objective, but also paying attention to personal safety. For me, if I have chance to have business trips in China, I will scan my ID card and Passport, save as jpg format, and store it in my email box before I go, in order to have a way to prove own status when I lose my passport and ID. Also, In addition, the factory address and other urgent contact information, I will store in my e-mail box too, just in case.
更新1:
If the destination is undeveloped country, i am willing to accept companys monitoring, go to the restaurant and hotel assigned by company, and do not go out alone.