Sale of Goods Act (SOGA): Primary legislation governing contracts for sale of goods in Singapore. Defines rights and obligations of buyers and sellers, and covers conditions and warranties in sales contracts.

Contracts Act (Cap. 53): Core legislation governing contract formation, including requirements for valid contracts (offer, acceptance, consideration, intention) and common law principles.

Electronic Transactions Act: Regulates electronic transactions and communications, including legal recognition of electronic signatures and validity of electronic contracts.

Consumer Protection (Fair Trading) Act: Protects consumer interests in transactions, covers unfair practices and consumer rights. Particularly relevant if the sale is to a consumer rather than B2B.

Goods and Services Tax Act: Governs GST implications and tax registration requirements for sales transactions in Singapore.

Consumer Protection (Trade Descriptions and Safety Requirements) Act: Regulates product descriptions and safety standards that must be adhered to in sales documentation.

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

International Trade Laws: Relevant for cross-border sales, including Incoterms and import/export regulations applicable to Singapore.