Allister Tan
Founding Director

Overview
With over 16 years of legal experience, he has earned a reputation for successfully handling complex, high-stakes litigation and arbitration cases for a diverse clientele, including ultra-high net worth individuals, multinational corporations, state-owned entities, and financial institutions. His practice spans a range of industries, including banking and finance, insurance, infrastructure, energy and commodities, and technology.
In the insurance sector, Allister’s expertise is highly sought after by insurers, reinsurers, brokers, and policyholders alike. His technical expertise and strong commercial acumen make him a trusted advisor and counsel of choice for clients navigating complex insurance disputes in Singapore and the region. He excels at balancing legal strategy with practical business considerations to achieve optimal outcomes.
Allister’s expertise is recognised by leading legal publications. He is ranked in Chambers Asia-Pacific for Insurance (2025) and is commended by the industry and his peers for his “brilliant legal mind” and for being “an extremely persuasive advocate”. He is also described as “not only an excellent legal advisor but also a savvy negotiator with a good understanding of both commercial as well as insurance requirements”, and as “a technical expert in the sparse world of insurance disputes, and a trusted adviser who balances commercial needs with the legal position.”
Allister has also been recognised by Asian Legal Business as one of Singapore’s Rising Stars (2022 and 2024), and by Singapore Business Review as one of Singapore’s most influential lawyers under 40 (2023).
Allister graduated from the University of Nottingham and is admitted to the Singapore Bar, as well as the English and Malaysian Bars. Beyond his legal career, Allister serves as the Honourary Secretary for Dementia Singapore.
Notable Cases
- Representing an insured international chain of luxury hotels in a coverage dispute involving an insurance claim in excess of US$40 million for business interruption losses arising from the restrictions imposed by the authorities following the COVID 19 pandemic.
- Representing a leading global provider of data centre and colocation solutions in multiple insurance claims arising from a major fire at one of its key data centres.
- Representing an insured Singapore public hospital in a coverage dispute in respect of a claim made under a fidelity guarantee and which concerns fraudulent and dishonest acts perpetrated by an employee over a period of 8 years.
- Representing the liquidators of a P&I club based in Bermuda in an appeal relating to the UNCITRAL Model Law on Cross-Border Insolvency before the Court of Appeal.
- Representing an insured global invoice financing platform in a coverage dispute against several insurers involving multiple claims under a trade credit insurance policy for losses in excess of US$65 million in respect of financing provided for the trading of commodities.
- Representing an insurer in two SIAC arbitrations involving a major Singapore based bank in a coverage dispute under trade credit insurance policies involving a sum in excess of US$60 million.
- Representing an ultra-high net worth in a dispute against a major financial institution for losses arising from one of Singapore largest penny stock crashes which wiped out S$8 billion from the Singapore stock exchange.
- Acted in two related SIAC arbitrations in relation to breaches of a sale and purchase agreement and a deed of undertaking involving an amount of approximately US$57 million. The dispute was in relation to the sale and purchase of several palm oil plantations in Indonesia and inter alia involved expert evidence on Indonesian laws and procedures.
- Representing a Swiss-based multinational market expansion service provider in a dispute with its competitor. The matter involves the alleged unauthorized use of confidential information and copyright infringement, as well as issues of Malaysia and Singapore law.
- Representing a Russian oligarch in a dispute spanning over multiple jurisdictions (i.e. Cyprus, BVI, Russia, Singapore and Belize) involving a major Russian based bank. The dispute involves allegations of fraud and a sum in excess of Euro 120 million, as well as freezing injunctions in multiple jurisdictions, and the appointment of receivers and managers over assets.
- Representing a high-profile oil-executive in a claim for breaches of fiduciary duties and misappropriation of funds in excess of €150 million, as well as breaches of US Sanction laws.
- Representing a Hong Kong based investment firm in a dispute over ownership of a petrochemical company based in the middle east valued at approximately US$1.5 billion.
- Representing a market-leading digital asset exchange in an internal investigation following a whistleblower complaint against key senior executives involving allegations of dishonest, breaches of local regulations, abuse of power and mismanagement.
Accolades
Asian Legal Business:
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- Listed as one of Singapore’s Rising Stars (2022, 2024)
Benchmark Litigation Asia-Pacific Awards:
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- Winner, Impact Case 2024 – QBE Insurance & Anor v Relax Beach Co. Ltd
Chambers Asia-Pacific
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- Insurance 2024: Up and Coming
Singapore Business Review:
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- Listed as one of Singapore’s most influential lawyers under 40 (2023)
Publications
- Co-author, Singapore Annotated Statutes: Contracts (Rights of Third Parties) Act
- Co-author, Singapore Annotated Statutes: Misrepresentations Act
- Co-author, Chambers Global Practice Guide: Insurance Litigation 2022 (Trends and Developments, Singapore chapter)
- Co-author, The Legal 500 Country Comparative Guides: Insurance Disputes 2024, Singapore Chapter
Appointments and Memberships
- Honorary Secretary, Management Committee Member, and Audit Sub-Committee Member, Alzheimer’s Disease Association
- Member, Chartered Institute of Arbitrators (CIArb)