Case recap: Bribery exposed via whistleblower
This article entitled ”How letter in CPIB mailbox exposed case with 89 bribe recipients linked to waterproofing firm” published by The Straits Times on 28 June 2025 recounts a major corruption case in Singapore that was uncovered thanks to an anonymous whistleblower who dropped a letter into the Corrupt Practices Investigation Bureau (CPIB)’s mailbox in 2012.
The tip-off revealed a systematic and prolonged bribery scheme in a waterproofing firm, leading to one of Singapore’s largest corruption cases in terms of the number of recipients involved.
The firm’s director had paid approximately S$461,600 in bribes — labelled as “referral fees” — to 89 individuals, including managing agents and property contractors, between 2011 and 2014 to secure project referrals. Ultimately, 21 recipients were prosecuted, with several jailed and fined. The director himself received a 30-month jail sentence.
Why whistleblowing matters?
- Detection of hidden misconduct: Without the tip-off, long-running bribery might have persisted undetected.
- Protecting public interest: Corruption leads to inflated costs and potential safety compromises, and erodes trust in the property management industry.
- Legal deterrent: CPIB’s swift action reinforces that no corrupt actor is beyond accountability.
How Nexia Singapore can help
Nexia Singapore’s whistleblowing solutions are tailored to help organisations establish strong programmes that drive early detection, accountability and resilience.
Here’s how we can assist your organisation:
1. Prevention through awareness
By training employees to identify and report misconduct early, they are equipped to escalate concerns before issues become entrenched — just as the CPIB tip off did.
2. Safe reporting channels
Many whistleblowers hesitate to report due to the fear of retaliation. Nexia Singapore’s independent, anonymous and secure channels (including truly confidential options) foster trust and encourage reporting.
3. Oversight and remediation
Governance reporting provides boards and executives with timely insight into potential misconduct, enabling swift investigation and remediation — avoiding escalation into systemic corruption.
4. Holistic risk management
Beyond whistleblowing, Nexia Singapore’s expertise in internal control reviews, forensic accounting and expert witness support complements the programme — ensuring organisations handle incidents robustly and transparently.
For organisations seeking to strengthen governance, build trust and embed ethical resilience, Nexia Singapore offers a proven suite of whistleblowing services — from policy design to secure reporting, training and investigative support.
To learn more about Nexia Singapore’s whistleblowing services, please reach out to
Mr. Ong Woon Pheng
CA (Singapore), FCCA (UK), CVA, CFA, IMAA, CFE, ATP
Director, Financial Advisory Services
woonpheng.ong@nexiasingapore.com