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Office of Significant Investments Review

Overview of the Significant Investments Review Act (SIRA)

Learn about the Significant Investments Review Act and its relevant legislation.

Last updated 25 May 2026

What is the Significant Investments Review Act?

The Significant Investments Review Act (SIRA) complements existing sectoral legislation and manages significant investments into critical entities, to safeguard Singapore's national security interests. This will provide businesses and investors with continued confidence in Singapore as a stable, trusted, and well-connected global business and investment hub.

Click to access the relevant legislation for SIRA via Singapore Statutes Online:

  1. SIRA

  2. Significant Investments Review (Reviewing Tribunal) Rules 2024

  3. Significant Investments Review (Disregarded Equity Interests) Regulations 2025

Subsidiary legislation under SIRA for the Ministry of Trade and Industry:

  1. Significant Investments Review Regulations 2024

Subsidiary legislation under SIRA for the Ministry of Defence:

  1. Significant Investments Review (Composition of Offences - Minister for Defence) Regulations 2025

Subsidiary legislation under SIRA for the Ministry of Home Affairs:

  1. Significant Investments Review (Compoundable Offences - Minister for Home Affairs) Regulations 2025