Customer Due diligence report in the blue folder

Third-Party Due Diligence

Knowing Who You Are Really Doing Business With

Loon Hean Tan
03/06/2026
Customer Due diligence report in the blue folder
What is Third-Party Due Diligence?

In today’s interconnected business environment, organisations rely heavily on third parties such as suppliers, vendors, agents, distributors and business partners to operate and grow. While these relationships create opportunities, they also introduce risks that may not always be visible at first glance.

Third-party due diligence is the process of assessing and monitoring third parties to understand their background, integrity, ownership structure, financial standing and potential risk exposure. The objective is simple: to help organisations make informed decisions about who they engage with and how those relationships should be managed.

Rather than being a one-off “tick-the-box” exercise, effective third-party due diligence provides structured insight both before onboarding and throughout the business relationship, supporting stronger governance and better risk management.

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Why is Third-Party Due Diligence Important?


Many high-profile corporate issues do not originate internally, but through third parties acting on behalf of, or alongside, an organisation. A supplier involved in unethical practices, an agent with undisclosed conflicts of interest, or a partner facing financial distress can all expose an organisation to serious consequences.

Third-party due diligence is important because it helps organisations to:-

  • Identify integrity and compliance risks early
    Understanding a third party’s background, ownership and track record allows potential red flags to be identified before they escalate into larger issues.
  • Protect reputation and brand value
    Reputational damage arising from third-party misconduct can be costly and difficult to repair, even if the organisation was not directly involved.
  • Support regulatory and governance expectations
    Regulators and stakeholders increasingly expect organisations to demonstrate reasonable steps taken to assess and manage third-party risks.
  • Make better commercial decisions
    Due diligence insights support more informed decisions on whether to proceed with, restructure or decline a business relationship.

In short, third-party due diligence enables organisations to balance commercial opportunities with responsible risk-taking.

What Does Third-Party Due Diligence Typically Cover?


A structured third-party due diligence review may include:-

  • Background and business profile checks
  • Ownership and Ultimate Beneficial Owner (UBO) identification
  • Review of key individuals, including Politically Exposed Person (PEP) considerations where relevant
  • Legal and adverse information screening
  • Financial standing or credit indicators (where applicable)
  • Identification of red flags and risk indicators
  • Clear documentation of findings to support internal approvals and governance

The scope can be tailored based on the nature of the third party, geographic exposure and the organisation’s risk appetite.

Case Example

The Hidden Risk in a Trusted Supplier


Scenario (illustrative example):

A mid-sized manufacturing company engaged a long-standing overseas supplier to support business expansion. The supplier had been reliable operationally, and no formal due diligence had been conducted beyond basic onboarding checks.

During a routine third-party due diligence review, it was identified that the supplier’s ownership structure had recently changed. Further review revealed that one of the new beneficial owners had connections to previous regulatory investigations in another jurisdiction. While the supplier continued to perform operationally, this new information raised integrity and reputational concerns.

Outcome:

The company was able to reassess the relationship, introduce additional contractual safeguards and enhance monitoring. Importantly, management was informed early — before any regulatory or reputational issue arose.

This example highlights how risks may not always be obvious and why periodic third-party due diligence can provide valuable insight beyond surface-level information.

When Should Organisations Conduct Third-Party Due Diligence?


Third-party due diligence is commonly performed:

  • Before onboarding new suppliers, agents or business partners
  • When entering new markets or jurisdictions
  • For high-risk or high-value third-party relationships
  • Following changes in ownership, management or business scope
  • As part of periodic reviews for existing third parties

Organisations that adopt a proactive approach are better positioned to manage risks rather than reacting after issues occur.

How Our Third-Party Due Diligence Services Can Help


Our Third-Party Due Diligence Services are designed to provide practical, decision useful insights tailored to your organisation’s risk profile and business needs.

We support clients by:-

  • Conducting structured third-party reviews using desktop research, open-source intelligence and reputable databases
  • Highlighting key risk areas and red flags in a clear, easy-to-understand format
  • Providing documented outputs to support governance, compliance and onboarding decisions

Our approach focuses on clarity, proportionality and relevance, helping organisations understand risk without unnecessary complexity.

Conclusion

Building Safer, Stronger Business Relationships


Third-party relationships are essential to modern business — but they should never be entered into blindly. Third-party due diligence provides organisations with the visibility needed to protect their interests, reputation and long-term value.

By understanding who you are really doing business with, you can make more confident decisions, strengthen governance and build more resilient business relationships.

If you would like to learn how third-party due diligence can support your organisation, speak to us today.

Know Your Business Partners Before It’s Too Late

Strengthen your risk management and governance with structured third-party due diligence. Speak to our team to assess and monitor your business relationships with confidence.

Our Risk Consulting experts

Our team of professionals are ready to assist and guide you on all aspects of your needs.
Amos Law Chih Chien
Amos Law
Head of Risk ConsultingKuala Lumpur
Tan Loon Hean
Loon Hean Tan
Partner, Risk ConsultingKuala Lumpur
Emily Wong
Emily Wong
Director, Risk ConsultingKuala Lumpur