Billy Sun_Attorney at law

Billy Sun is a founding partner at Pontis Law. With his dual expertise in law and civil engineering, Mr. Sun has extensive experience in handling litigation and non-litigation cases. Mr. Sun’s practice spans a wide range of fields, including corporate and capital markets, the energy sector, government procurement, real estate development, and family wealth succession. He is adept at formulating comprehensive legal strategies tailored to complex commercial scenarios. Mr. Sun is regularly retained by government agencies, publicly listed companies, and leading domestic and international corporations, earning widespread recognition for consistently delivering outstanding results. He has led numerous landmark and high-profile cases that have drawn significant public attention, and offers deep insight into regulatory trends, industry evolution, and market practices. In recent years, Mr. Sun has also been actively engaged in the dissemination of legal knowledge—frequently invited to deliver keynote speeches and contribute articles—sharing his practical experience and legal perspectives with industry leaders and broader audiences, demonstrating both professional depth and sector influence.

• Preferred areas of practice

Corporate and Securities, Investment and Finance, Banking and Insurance, Cultural and Creative Industry, Administrative Remedies, Energy and Environmental Law, Family Heritage Plan, Intellectual Property, Employment and Labor, Government Procurement, Real Estate Development and Urban Renewal, Public-Private Partnerships (PPP), Construction Law

• Language

Mandarin, English, Taiwanese

• Professional Qualifications

Managing Partner, Pontis Law

R.O.C. Licensed Patent Agent

Arbitrator, Chinese Arbitration Association (Taipei, Taiwan)

Adjunct Lecturer, Department of Civil Engineering, Tamkang University (Taipei, Taiwan)

• Education

LL.M., Soochow University

B.A., Department of Civil Engineering, National Taiwan University 

• Professional Associations & Memberships

Chairperson, Construction Law Committee, Taipei Bar Association

Mediator, Appeals Review Board of New Taipei City Government's Department of Economic Affairs

Supervisor, Taiwan Institute of Build Environment Lifecycle Management

Director, Taiwan Society of Construction Law

Supervisor, National Council for Promotion of Private Participation in Infrastructure

Mediator, Taiwan New Taipei District Court

Mediator, Taiwan Taoyuan District Court

Advisor (Specializing in Construction), Taiwan Taoyuan District Court

Member, Labor Dispute Arbitration Committee, Yilan County Government

Member, Laws and Regulations Review Committee, Yilan County Government

Member, Legal and Covenants Committee, Chinese Taipei Tunnelling Association

Member, Young Engineer Committee, Chinese Institute of Civil and Hydraulic Engineering

Member, Local Branch Qualification Review Committee, Legal Aid Foundation

• Publications and Talks

1. Co-author, November 2024, “An Introduction to the Crime of Bid Rigging under the Government Procurement Act”, Angle Lawyer Empowerment, Issue No. 32
2. Co-author, October 2024, “Overview of Criminal Liability Related to Corruption and Malfeasance Offenses”, Civil and Hydraulic Engineering, Volume 51, Issue 5
3. Speaker, May 2024, “Disputes and Case Studies on Court Rulings Regarding Construction Insurance”, Engineering Insurance Association
4. Lecturer, March 2024, “Key Provisions of Solicitation Documents and Investment Contracts in PPP Projects”, Department of Continuing and Extension Education, Tamkang University
5. Lecturer, December 2023, “Overview of Construction Laws and Regulations”, Department of Civil Engineering, Hong-Kuo Institute of Technology
6. Lecturer, November 2023, “Key Provisions of Solicitation Documents and Investment Contracts in PPP Projects”, Department of Continuing and Extension Education, Tamkang University
7. Lecturer, August 2023, “Practical Overview of Contract Performance Management and Dispute Resolution”, Department of Continuing and Extension Education, Tamkang University
8. Speaker, May 2023, “Roles and Responsibilities of Design Supervision Units and Project Management Consultants”, Taiwan Technical Consultants Association
9. Speaker, September 2022, “Legal Literacy for Project Managers”, PCM Autumn Forum
10. Speaker, December 2022, “Key Considerations in the Termination of Construction Contracts” , Taipei Bar Association
11. Author, June 2022, “Lease Agreements and the Principle of Change of Circumstances Amid the COVID-19 Pandemic,” Angle Lawyer Empowerment, Issue No. 3
12. Lecturer, December 2021, “Overview of Construction Laws and Regulations”, Department of Civil Engineering, Hong-Kuo Institute of Technology
13. Speaker, October 2021, “Renewal of Investment Contracts in PPP Projects”, Taiwan arbitration week 2021
14. Speaker (Video), April 2021, “How to tackle non-performance of construction contract by a firm due to capital shortage” (Angle Publishing Co. Ltd.)
15. Speaker, December 2020, “An introduction to BOO (Build-Own-Operate)”, Tourism and Travel Bureau, New Taipei City Government
16. Lecturer, December 2020, “How to resolve PPP-related disputes via arbitration”, Tourism and Travel Bureau, Nantou County Government
17. Lecturer, December 2019, “Common Performance Disputes During the Operation Phase of PPP Projects”, Department of Tourism, Nantou County Government
18. Lecturer, May 2019, “Case Studies on Construction Law and Anti-corruption Risk”, Construction and Planning Agency, Ministry of the Interior
19. Lecturer, November 2018, “Schedule and Cost Calculation for Construction Contract Dispute Claims”, In-house Training for Listed Companies
20. Lecturer, October 2018, “Personal Data Protection Act – Legal Framework and Practical Application”, In-house Training for Listed Companies
21. Lecturer, September 2018, “Key Provisions and Performance Considerations in Government Procurement Contracts”, In-house Training for Listed Companies
22. Speaker, November 2017, “The Legal Disputes and Resolution about Jewellery Sale”, the Taiwan Jewelry Arts Institute
23. Speaker, September 2017, “The Legal Risks in Jewellery Business”, the Taiwan Jewelry Arts Institute
24. Lecturer, September 2017, “2017 Professional Training Program on Promotion of Private Participation (PPP)”, Keelung City Government
25. Lecturer, June 2017, “Analysis of Common Criminal Scenarios in Public Construction Projects”, Taiwan Construction Research Institute
26. Lecturer, April 2017, “Key Provisions and Handling Principles of Design-Build Contracts”, Research Development Center of Construction Law
27. Lecturer, September 2017, “PPP Professional Training”, Keelung City Government