According to the traditional definition of a trading company, it is an entity that purchases commodities from one country where the supply is abundant and resells them to another lucrative market where the demand is high. In this case, they purchase a specialized range of goods, maintain stock and ship them to the importing country. Take, for example, SUISSE COMMODITY. It is a reputable trading company that handles every aspect of export-import, being involved in the process directly.
On the other hand, there are international trading companies that do not involve in buying or selling commodities directly. Rather, they act as foreign trading brokers or intermediaries that facilitate the trading process.