Companies Act (Cap. 50): Primary legislation governing corporate entities in Singapore, covering related party transactions, directors' duties, corporate governance, and financial assistance provisions.

Banking Act (Cap. 19): Regulates banking and financial activities, including provisions for substantial loans, moneylending activities, and interest rate restrictions.

Income Tax Act (Cap. 134): Tax legislation covering transfer pricing, withholding tax requirements, interest tax deductibility, and thin capitalization rules for inter-company loans.

MAS Guidelines: Regulatory framework by Monetary Authority of Singapore covering inter-company financing, foreign exchange controls, and anti-money laundering requirements.

Contract Law (Cap. 32): Fundamental legislation governing contract formation, enforcement provisions, and remedies for breach of contract.

Stamp Duties Act (Cap. 312): Legislation governing stamp duty requirements and exemptions applicable to loan documents.

Insolvency, Restructuring and Dissolution Act 2018: Legislation covering corporate insolvency, priority of repayment in default scenarios, and related party transaction implications.

Foreign Exchange Regulations: Regulations governing cross-border transactions and currency control requirements for international loan agreements.