Okay, so let's say you want to buy a bunch of toys to play with. But you don't want to go to lots of different toy stores to get all the toys you want. That would take a long time and be hard work!
So instead, you go to a special kind of store that has lots of different toys from lots of different toy stores all in one place. This special kind of store is called a sogo shosha in Japan.
Sogo shoshas are companies that help other companies do business around the world. They buy lots of different products from different companies and then sell them to other companies in other countries. For example, they might buy lots of different types of toys from toy companies in Japan and then sell them to toy stores in the United States.
Sogo shoshas are like a big middleman that helps make business easier for everyone involved. They also help companies in other countries learn about new products and companies they might not have heard of otherwise.