With the progressive evolution of the global economy and the increasing complexity of corporate governance structures

financial transparency has become a cornerstone of market integrity. External auditing functions as a critical mechanism for ensuring the veracity and objectivity of financial reporting

thereby playing an indispensable role in mitigating information asymmetry between principals and agents. However

when external audits fail

the repercussions extend beyond the immediate financial restatement

eroding investor confidence and destabilizing capital markets. This study conducts an in-depth case analysis of the external audit failure of Renzhi Co.

Ltd.

a publicly listed company sanctioned by Chinese regulatory authorities for material misstatements. The research systematically explores the multifaceted causes and cascading consequences of this audit failure. By integrating principal-agent theory

information asymmetry

and the fraud triangle framework

this paper provides a structured diagnosis of the failure and proposes actionable recommendations for regulatory reform

firm-level quality control

and individual professional conduct. The findings underscore that audit quality is not merely a technical compliance issue but a foundational element of sustainable capital market development.