The Foreign Stablecoin Transparency Act amends the GENIUS Act to introduce new financial transparency and auditing requirements for specific foreign payment stablecoin issuers. This legislation targets issuers that have more than $50 billion in consolidated total outstanding issuance and are not already subject to reporting requirements under the Securities Exchange Act of 1934. Under the amended act, these foreign stablecoin issuers must prepare an annual financial statement in accordance with generally accepted accounting principles, including the disclosure of related party transactions. Furthermore, they are required to engage a registered public accounting firm to perform an audit of this financial statement. This audit must adhere to all applicable auditing standards established by the Public Company Accounting Oversight Board, covering aspects like auditor independence, internal controls, and related party transactions, thereby aligning their oversight with that of domestic counterparts.