Singapore Contract Act (Cap. 53): Primary legislation governing contract formation, validity, and enforcement in Singapore. Essential for understanding basic contractual principles even in non-binding agreements.

Common Law Principles: Singapore's legal system incorporates common law principles for contract interpretation and formation, particularly relevant for Letters of Intent.

Companies Act (Cap. 50): Regulates company operations in Singapore. Relevant when parties to the LOI are registered companies, affecting their capacity to enter into agreements.

Business Registration Act: Provides framework for business entity verification and registration. Important for proper party identification in the LOI.

Electronic Transactions Act: Governs electronic contracts and signatures in Singapore. Relevant if the LOI will be executed electronically.

Gay Choon Ing v Loh Sze Ti Terence Peter [2009]: Key Singapore Court of Appeal case establishing principles for distinguishing binding versus non-binding agreements.

Industry-Specific Regulations: Sector-specific laws and regulations that may affect the content and structure of the LOI depending on the industry involved.

Disclaimer Requirements: Legal requirements for clear and unambiguous language stating the non-binding nature of the LOI under Singapore law.

Confidentiality Provisions: Legal framework for incorporating binding confidentiality clauses within an otherwise non-binding LOI under Singapore law.