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UNITY ASSURANCE PAC is a Public Accounting Corporation providing audit and assurance, corporate and individual tax, business outsourcing services, secretarial services and advisory services.  We serve companies in Singapore as well as subsidiaries of multinational companies from many countries. We have experience in handling clients from different industries including, but not limited to trading, oil and gas, manufacturing, food & beverage operations, freight forwarding, investment holding, Web and IT companies, construction, childcare operators, service companies and non-profit organisation.

Our team is made up of highly qualified staff dedicated to deliver excellent and timely services tailored to specific business needs of the international community. We develop attentive personal relationships with each client, treating your business as our own, while maintaining total and complete independence.

In 2019, Zhen Public Accounting Firm, a local auditing firm merged with Unity Assurance PAC. After the merger, Zhen continues to operate under its name with Mr Lim as the managing partner of the firm. The merger has enhanced the Company’s capacity to extend its various services to its clients.

To date, with the merger our staff strength has grown to a size of more than 25 (excluding partners) and we are constantly seeking to increase our staff strength. We have various staff who are Chartered Accountant Singapore (“CA (Singapore)”) in the Company, and some of our staff are currently studying for the Singapore QP programme which leads them to becoming a CA (Singapore).

"With your support and our assurance, in UNITY, we grow company of TOMORROW


Lim Fang Sung
CA (Singapore), ATA (Income Tax), ATA (GST)

Mr Lim graduated from Nanyang Technological University of Singapore and is currently a practising member of the Institute of Singapore Chartered Accountants (ISCA), and has been in public practice since April 2001. Mr Lim currently sits on the hot review panel under the Practice Monitoring Programme as an independent reviewer to review the working paper of those practising accountant who has failed their review by the authority.

He is also appointed as a mentor at the ISCA Cares Mentoring Programmes that provides mentoring, advices and encouragement to needy youth who are recipients of the ISCA Cares bursaries.

He is an accredited tax advisor for GST and Income tax of the Singapore Institute of Accredited Tax Professionals (SIATPs) and also an approved liquidator registered with the ACRA.

He has more than 20 years of experience in audit, taxation and business advisory. Prior to setting up his own practice, he was with a medium-sized local CPA firm which he involves in various assurance services including the joint audit with international firm for companies going for IPO listing.

He is appointed as the Vice-President on the executive committee of Foreign Domestic Worker Association for Social Support and Training (FAST), a charity which promotes social support and skills training for foreign domestic workers in Singapore.

Simon Soh

MTax, ATA (Income Tax), CA (Singapore), FCCA, Asean CPA

Simon started out his career in the field of audit in 2007 with CY NG & Co and subsequently Odds and Even Associates. In 2013, Simon joined Plus LLP as an Audit Manager and spend 4 years and 9 months under the tutelage of his senior partners Mr. Ng Cher Yan BBM and Mr. Kelvin Ton.  He was appointed as the ATO training mentor during his employment with Plus LLP.

During his time as an auditor in 2013 to 2017, he developed a keen interest for taxation, and further expanded his career into the arena of international taxation. He subsequently pursued a Master Degree in Taxation with SUSS. Upon completion of his Master Degree, he joined Unity in 2018 in the capacity of a Tax Director.

Simon is admitted as a Chartered Accountant of Singapore on 23 October 2012 and ASEAN Chartered Professional Accountant on 31 December 2017. Simon is also a member of the Association of Chartered Certified Accountants on 28 February 2013. He was made a Fellow of the Association of Chartered Certified Accountants on 28 February 2018.

Simon is accredited as an Accredited Tax advisor (Income Tax) on 25 May 2017. On 20 September 2017, Mr. Soh is conferred the degree of Master in Taxation by SUSS.

Liew Seh Siong
CA (Singapore)

Seh Siong started out his career in the field of audit with Odds & Even Associates, in September 2006 and in 2008, he left to join a commercial accounting role with an international company.

In October 2009, he re-joined Odds & Even Associates and had been with the Company since then and is currently employed as a Senior Audit Manager of Unity Assurance PAC, under the tutelage of our founding partner Mr. Lim Fang Sung throughout the years.

Seh Siong completed his studies and obtained the professional qualification from the Association of Chartered Certified Accountants. In May 2013, he was conferred the title of the CA (Singapore) full member.

During his tutelage under Mr. Lim, he was tasked with various work and responsibilities. Those responsibilities includes but not limited to, providing audit training and Financial Reporting Standards training, audit supervision, planning and review.

Alpino Phang
BSC (Hons)

Alpino joined Unity Assurance PAC in January 2015 with his primary focus in external statutory audits. Previously, he had worked under the mentorship of our founding partner Mr. Lim Fang Sung as an audit associate in Odds & Even Associates for 2 years between 2009 and 2011.

Pursuing his entrepreneurship dreams, he left Odds and Even Associates in 2011 and managed his own hospitality start-up. He would subsequently re-joined Odds & Even Associates in 2012 and juggled between working and managing his own business. Since then, he had been with the firm and worked under Mr. Lim when the latter established Unity Assurance PAC.

Alpino migrated to Singapore in 1999 and completed his secondary education in 2002. He then pursued his studies in Vancouver, Canada where he spent 2 years to complete his college. Alpino holds a BSc (Hons) in Accounting and Finance from University of London and is currently embarking on Singapore Chartered Accountant qualification.

With his current position as Audit Manager, Alpino is tasked among others with servicing engagement clients, monitoring, training and development of engagement team as well as both internal and external audit reviews.