A more thorough explanation:

The Denied Persons List is a list of individuals and companies who are not allowed to participate in export transactions. This list is maintained by the Bureau of Industry and Security (BIS) under the Department of Commerce.

If an American company or individual is found to be involved in an export transaction with someone on the Denied Persons List, they may face legal consequences.

John is an American businessman who wants to export some goods to China. Before he finalizes the deal, he checks the Denied Persons List and finds that the company he was planning to do business with is on the list. John cannot proceed with the transaction as it is illegal to do so.

Another example is a company that wants to sell technology to a person on the Denied Persons List. The company cannot do so as it is against the law.

These examples illustrate how the Denied Persons List works and how it prevents individuals and companies from engaging in illegal export transactions.