Personal Data Protection Act 2012: Primary legislation governing the collection, use, disclosure and care of personal data in Singapore. Includes requirements for data protection, cross-border transfers, and breach notifications.

Evidence Act: Governs the admissibility of evidence in legal proceedings, relevant for confidentiality agreements in terms of proving breaches and enforcement.

Contracts Act (Cap. 53): Fundamental legislation governing contract formation, validity, and enforcement in Singapore, essential for the basic structure of the confidentiality agreement.

Official Secrets Act: Legislation protecting government secrets and official information, may be relevant if government-related information is involved in due diligence.

Copyright Act: Protects original works and intellectual property rights, relevant for protecting proprietary information shared during due diligence.

Trade Secrets Protection: Common law principles protecting confidential business information and trade secrets, crucial for due diligence confidentiality.

Banking Act: Regulates banking institutions and includes provisions on banking secrecy and confidentiality of customer information.

Securities and Futures Act: Governs securities, futures, and financial markets, including provisions on insider trading and disclosure of information.

Competition Act: Regulates competitive behavior and information sharing between businesses, relevant for ensuring compliance in information exchange.

Employment Act: Relevant when confidentiality obligations involve employees or when due diligence includes employee information.

Common Law Breach of Confidence: Legal principle protecting against unauthorized use or disclosure of confidential information, fundamental to confidentiality agreements.

MAS Guidelines: Regulatory guidelines from the Monetary Authority of Singapore, particularly relevant for financial sector due diligence.