Anyone have any recommendations for BD Japanese?

I’m in a US based company I was asked by my boss to try to look into Japanese markets since my boss knew that I had at least conversational competence in Japanese. He mentioned that we could go to some Japanese trade shows. I’d say I’m more well-versed in casual conversation. I think I’d like to learn a little bit more conversational chops for does-and-don’ts for the business development world, toward Japanese specifically for American businesses trying to do business development with Japanese companies and get their business.

Anyone in this world or have any good resources? I have an understanding of kenjougo and sonkeigo, but in general, どういう状況でこの話し方とかマナーを使うか分かりません。

For reference I am in the biotech world.