The country’s top auditor said CK Hutchison owes the government $300 million, posing a hurdle to a plan touted by Trump to bring the ports under U.S. control.

A deal to transfer control over major Panama ports from China-tied CK Hutchison to American firm BlackRock hit roadblocks after Panama’s top auditor accused the Hong Kong business of wrongdoings and owing hundreds of millions of dollars in unpaid fees.