- The goal of doing business there is to get business/keep the customer(s)
- Telling customers how to act does not have the best chance of achieving those goals
- If you feel uncomfortable, you need to leave the ultimate decision to your boss
Your company is in China to get business. You were brought because they think you can help accomplish that goal. If you are sent to China by your company, they expect you to forward that goal, and definitely do not expect you to torpedo it.
If you feel uncomfortable to the point where you don't think you can accomplish that goal given your recent experience, then that is definitely an issue that your company likely wants to know about.
You can't control customers
Generally speaking, telling customers that they need to change their behavior, doesn't go over well (regardless of culture). Telling Chinese customer who was the host and treated you to a night out that they were acting inappropriately is going to go over ever worse. As far as business in Asia goes, this sounds relatively tame, which makes it even more difficult to have a discussion about.
So if you're feeling uncomfortable, telling the customer is probably the wrong way to go about it.
This is a decision for your boss
You don't feel you can achieve your company's goals. Telling the customer is unlikely to remove the uncomfortableness, and probably won't do a good job at achieving your company's goals either. You need to let your company know.
I would sit down with my boss and say something along the lines of:
Hey boss, thanks for giving me the opportunity to go to China. I am really thankful that you thought I would be a benefit to helping improve our business here, and the experience was definitely a great one. While I enjoyed the business aspects, I felt a bit uncomfortable with the social aspects, particularly that bar we got taken to on Thursday. I didn't say anything at the time because I didn't want to risk the business or cause any problems when everyone was having a good time, but I would like to avoid situations like that in the future. What do you think is the best way to handle that?
The main points are:
- Let him know that you appreciate the opportunity
- Point out that you were uncomfortable with only a small portion of it
- Explain that you had the common sense not to raise a stink at the time
- Ask how to proceed
Realize that the answer may just be, "Don't come to China next time". At the end of the day, you need to give the information to your boss he needs to make a decision. You may not like the decision, but when you want to take a moral stand that could jeopardize business, that's the way the cookie crumbles. I know many people who refuse to do business trips to certain countries or regions (or anywhere at all) because it doesn't rub them right. And that's a decision you have to make for yourself, knowing full well it could have negative consequences for your career.