Contract Act (Cap. 53): Primary legislation governing contract formation and enforcement in Singapore, including basic principles of offer, acceptance, consideration, and contractual obligations

Common Law Principles: Singapore's legal system incorporates English common law principles for contract interpretation and enforcement where not superseded by local statutes

Electronic Transactions Act: Governs the validity and use of electronic signatures and electronic records in Singapore, relevant if the MOI will be executed electronically

Stamp Duties Act: Determines if the document requires stamp duty payment and the applicable rates, though MOIs typically don't require stamping unless they involve property transfers

Competition Act: Ensures the MOI doesn't contain anti-competitive provisions or practices that could violate Singapore's competition laws

Personal Data Protection Act (PDPA): Governs the collection, use, and disclosure of personal data, relevant if the MOI involves handling of personal information

Companies Act: Regulates corporate entities' powers and authorities, including their capacity to enter into MOIs and requirements for execution

Business Registration Act: Relevant for verifying the legal status and registration of business entities entering into the MOI

United Nations Convention on Contracts (CISG): International sales law that may be relevant if the MOI involves cross-border commercial intentions

International Arbitration Act: Relevant if the MOI includes dispute resolution provisions referring to international arbitration