Siong Sie is a skilled chartered accountant and tax expert with a proven ability to navigate and resolve complex disputes with tax authorities. With years of experience, he has earned the trust of both local and international clients across diverse industries, advising on all aspects of tax and international trade. His exceptional expertise has led to recognition in Chambers Asia-Pacific 2025 and Legal 500 Asia Pacific 2025 for Tax in Malaysia. Siong Sie also serves as legal counsel to the Malaysia Competition Commission on competition matters.

Before entering legal practice, Siong Sie honed his skills as a treasury manager and in-house counsel for Tesco Malaysia, worked as an auditor with PricewaterhouseCoopers in Kuala Lumpur, and gained invaluable experience as a tax practitioner at a boutique tax firm.