Sale of Goods Act (SOGA): Primary legislation governing contracts for sale of goods, covering rights, obligations, and remedies for both parties. Includes provisions for title, quality, and delivery requirements.

Contracts Act (Cap. 53): Core legislation governing contract formation, including common law principles on offer, acceptance, consideration, and intention to create legal relations.

Supply of Goods Act: Legislation specific to commercial supply relationships, establishing quality standards and fitness for purpose requirements.

Consumer Protection (Fair Trading) Act: Legislation protecting consumer interests in supply relationships, including provisions against unfair trading practices.

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

Unfair Contract Terms Act: Controls the use of exclusion clauses and establishes reasonableness tests for contractual terms.

Competition Act: Regulates anti-competitive practices and price fixing considerations in supply relationships.

Personal Data Protection Act (PDPA): Governs the collection, use, and disclosure of personal data in business relationships, including supply contracts.

UN Convention on Contracts for International Sale of Goods (CISG): International treaty governing cross-border sales contracts, applicable unless explicitly excluded (Singapore is a signatory).

Industry-specific Regulations: Various regulatory requirements specific to the type of goods being supplied, including safety standards and licensing requirements.

Import/Export Regulations: Laws and regulations governing the international movement of goods, including customs requirements and trade restrictions.