ADR delisting and the HFCAA: the audit-inspection clock
What the Holding Foreign Companies Accountable Act does, how the PCAOB inspection clock works, and what a US trading prohibition mechanically means for an ADR holder.
The Holding Foreign Companies Accountable Act, enacted in December 2020, tied continued US listing of foreign issuers to something specific and testable: whether the PCAOB — the US audit regulator — can fully inspect the accounting firms that audit them. For China-based issuers, whose audit workpapers had long been off-limits to US inspectors, the act started a delisting clock.
The mechanism
If the PCAOB determines it is unable to inspect or investigate an issuer's auditor completely for consecutive years, the SEC must prohibit trading in that issuer's securities on US exchanges and in the over-the-counter market. The statute originally set the threshold at three consecutive years; Congress shortened it to two in late 2022. Through 2021 and 2022 the SEC published rolling lists of "Commission-Identified Issuers," and more than 170 China-based companies were named.
Where the clock stands
In August 2022 the PCAOB signed a Statement of Protocol with the China Securities Regulatory Commission and China's Ministry of Finance, and inspectors examined mainland audit work from Hong Kong. In December 2022 the PCAOB announced it had secured complete access for that cycle and vacated its earlier determinations — resetting the clock rather than ending it. Access is reassessed every year; renewed obstruction would restart determinations, and the shortened two-year threshold means the path from a determination to a trading prohibition is now faster than it was when the act passed.
What a trading prohibition actually does
A prohibition ends trading on US venues; it does not, by itself, extinguish the security. The company continues to exist, and where a Hong Kong listing exists the ADR can generally be cancelled and the underlying HK shares delivered through the depositary. What does change is everything built on top of US trading: exchange listing, index inclusion, margin eligibility, and the mandates of funds that can only hold US-listed lines.
That mechanical picture explains the wave of Hong Kong dual listings and primary conversions among US-listed Chinese names in 2021 and 2022: a second venue functions as insurance against losing the first. It is also why we track each covered name at its listing venue, not just its US receipt.
Where the status is published
The clock is public at every step. The SEC maintains its list of Commission-Identified Issuers on its HFCAA page; the PCAOB publishes its determinations on auditor access each cycle; and every China-based issuer's annual report on Form 20-F names its audit firm and discloses whether the company has been identified under the act. Those three sources, read together, tell you exactly where a given name stands on the clock at any moment.