Companies Act (Cap. 50): Primary legislation governing corporate matters including share transfers, registration and security interests over shares. Contains key provisions for maintaining share registers and any restrictions on share transfers.

Securities and Futures Act (Cap. 289): Regulates securities and contains provisions regarding creating and perfecting security interests over securities, including disclosure obligations and compliance requirements.

Civil Law Act (Cap. 43): Provides the fundamental contract law principles and requirements for valid contracts under Singapore law.

ACRA Regulations: Regulatory requirements from the Accounting and Corporate Regulatory Authority regarding registration and filing requirements for share pledges.

SGX Listing Rules: Additional requirements applicable when dealing with shares of listed companies, including disclosure obligations and compliance requirements.

Securities and Futures (Disclosure of Interests) Regulations: Specific regulations governing disclosure requirements for security interests over shares, particularly relevant for listed companies.

Stamp Duties Act (Cap. 312): Legislation governing applicable stamp duties on share transfers and related documentary requirements.

Personal Data Protection Act 2012: Legislation governing the collection, use, and disclosure of personal data of individuals involved in the share pledge transaction.

Insolvency, Restructuring and Dissolution Act 2018: Contains provisions affecting security interests in insolvency scenarios and the rights of secured creditors.