Sale of Goods Act (SOGA): Primary legislation governing contracts for the sale of goods in Singapore. Defines fundamental rights and obligations of buyers and sellers, covers implied terms about quality and fitness for purpose, and addresses transfer of title and risk.

Contract Act (Cap. 53): Core legislation governing contract formation, including common law principles, rules regarding offer, acceptance, consideration, intention, and requirements for validity and enforceability of contracts.

Unfair Contract Terms Act (UCTA): Legislation controlling the use of exclusion clauses and liability disclaimers in contracts, establishing reasonableness tests for contract terms.

Consumer Protection (Fair Trading) Act (CPFTA): Legislation protecting consumer rights in sales contracts, including provisions against unfair practices, cooling-off periods, and consumer remedies.

Electronic Transactions Act: Legislation governing electronic transactions and contracts, including recognition of electronic signatures and establishing validity of electronic contracts.

Personal Data Protection Act (PDPA): Legislation governing the collection, use, and disclosure of personal data in commercial transactions, including consent requirements and data protection obligations.

Competition Act: Legislation regulating anti-competitive practices, including price-fixing and other market restrictions that may affect sales contracts.

Industry-Specific Regulations: Various regulatory requirements specific to particular industries or goods, including licensing requirements, compliance standards, and specific legal obligations for certain types of products or services.