Aventross PAC

Audit leadership

Senior assurance leadership across statutory audit, regulated environments, reporting readiness, and complex engagements.

Ai Sze Yin

Ai Sze Yin

CA (Singapore)

Managing Partner

Ai Sze Yin brings more than 20 years of audit and assurance experience across SGX-listed companies, multinational groups, overseas funds, and high-growth businesses. Her background combines technical rigour with close client leadership, shaped by audit, accounting advisory, and transaction support work.

  • Former Principal Inspector in ACRA's Practice Monitoring Department
  • Led audit teams supporting successful NASDAQ and SGX listings
  • Delivered accounting advisory and financial due diligence support across M&A transactions
Chan Siew Ting

Chan Siew Ting

CA (Singapore)

Head of Audit

Chan Siew Ting has over 20 years of experience leading assurance work for SGX-listed companies, multinational groups, SMEs, and non-profit organisations. She is known for technically grounded delivery that remains practical for management teams and boards.

  • Assurance experience across public listed, multinational, SME, and NPO clients
  • Broad sector exposure from manufacturing and construction to shipping and services
  • Involved in IPO projects where the firm served as reporting accountants
Chew Shu Yin

Chew Shu Yin

CA (Singapore)

Senior Manager, Assurance Financial Institution Lead

Chew Shu Yin specialises in financial services and asset management, with 16 years of audit experience including 12 years in Big 4 financial services audit. She combines regulated-entity discipline with commercial finance exposure from a fintech payments environment.

  • Audits for MAS-licensed fund managers, securities brokers, and Singapore VCCs
  • Experience across private equity and hedge funds, investment property SPVs, and fund structures
  • Supports regulated FI clients and selected corporate clients with practical issue handling
Lim Lay Er

Lim Lay Er

B.Acc (Hons)

Manager, Assurance Special Projects Lead

Lim Lay Er focuses on U.S. listing readiness and financial reporting preparation, with more than eight years of external audit experience and deep exposure to U.S. GAAP conversion workstreams. She helps clients move from reporting gaps to audit-ready submissions with clarity.

  • Led U.S. GAAP conversion and audit readiness workstreams
  • Supported preparation of audit-ready financial information and MD&A
  • Strong technical capability across IFRS and U.S. GAAP
Tan Jia Qian

Tan Jia Qian

B.Acc (Hons)

Manager, Assurance Charities Lead

Tan Jia Qian focuses on statutory audits and assurance engagements for charities, non-profit organisations, and grant-funded entities. Her approach is structured, risk-based, and grounded in a strong understanding of reporting and control expectations.

  • Deep experience across charities, NPOs, and grant and fund reporting frameworks
  • Leads risk-based audit planning and internal control assessments
  • Regularly engages boards and senior management on governance and reporting quality
Ethan Lim

Ethan Lim

B.Sc (Physics) ACAMS

Compliance Manager

Ethan Lim is a Compliance Manager with expertise in MAS audit support, remediation exercises, compliance checks, and regulatory reviews. He is experienced in assessing control gaps, strengthening policies and procedures, and driving practical remediation measures to help organisations meet regulatory expectations and enhance their overall compliance framework.

  • Supports MAS audit work, compliance reviews, and remediation programmes
  • Assesses control gaps and strengthens policies and procedures
  • Helps organisations respond practically to regulatory expectations

Aventross Corporate Advisory

Advisory leadership

Advisory leadership across funds, tax, governance, and finance support for businesses operating under greater complexity.

Gustin Foo

Gustin Foo

FCA (Singapore) FCCA

Director

Gustin Foo combines audit, commercial finance, and digital process experience to support clients with operational clarity and governance-led execution. His background spans listed-company audits, cross-border assignments, and internal controls and process improvement work.

  • Led statutory audits for public listed companies across multiple sectors
  • Managed cross-border assignments in Malaysia and Thailand
  • Conducted internal controls reviews and delivered practical recommendations to improve governance and efficiency
Cora Cheung

Cora Cheung

CA (Singapore) Adv LL.M (Intl Tax Law)

Tax Director

Cora Cheung is a Singapore Chartered Accountant and tax specialist with more than a decade of experience advising regional corporates, start-ups, funds, and private capital structures. Her work combines structuring discipline with commercially workable recommendations.

  • Designed and implemented cross-border transactions including M&A, PE/VC fund setups, and restructurings
  • Supported wealth and holding structures for HNWIs and family offices
  • Advised on transaction and tax issues across Asia with a pragmatic operating lens

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