The compliance officer at an EU bank is investigating one of the customer accounts maintained...

The compliance officer at an EU bank is investigating one of the customer accounts maintained with the bank for the last two years. According to bank records, the company's primary economic activity is import and export of petrochemical products Over a period of one year, the account transactions have exceeded US$500 million with various high-value inward wire transfers received from suppliers in Yemen followed by outward wire transfers to counterparties in Azerbaijan.

Which factor should give the compliance officer the greatest concern If observed in the investigation?