In Japan, we have a lot of manners relating to business. One example is the business card which is called Meishi. I've already seen that some people use it for business here in New Zealand. However,in Japan,the business card has special importance. It isn't just written states.
In Japan, we use the business card to introduce ourselves for business. then there are some things we need to be careful about because we think of the business card as "ourselves". Therefore take care not to fold, make dirty or write anything on a business card when you receive it. After recieving it, after the the business is finished, we sometimes do write something on it to help us remember a detail. But strictly speaking we shouldn't do this. Also, we keep business cards in a protective case. Above all, Japanese business people always have to be careful to be seen to use the business card in the business scene. It is a sign of respect and professionalism.