If the official does not know, then he or she is free to say so. I am free to ask for more information.
You will be aware that U.S. Customs and Border Protection publishes the UFLPA list, which is a list of designated entities under that U.S. law. As well, they publicly issue press releases about withhold release orders for the blocking of importation of goods that are suspected to be produced by forced labour.
Does the Department of Foreign Affairs do the same?