Rapinnart Prongsiriwattana


Contact Details

T: + 66 2 264 8000
F: + 66 2 657 2222

Rapinnart Prongsiriwattana is a counsel in the litigation and arbitration practice group. Rapinnart has over 20 years’ experience representing clients in civil, criminal, bankruptcy and administrative dispute resolution. He has successfully advised and represented major corporations in many of the country's most complex and high-profile commercial dispute matters. He has expertise in many industries, including  construction and engineering, consumer products, energy (oil and gas and renewables), government and public sector, hotels and real estate, insurance, transportation and logistics, and telecommunications and media technology.

Rapinnart is a panelist in the annual International Bar Association Asia Pacific Arbitration Group International Arbitration Training. He also has expertise in banking and finance, international trade, mergers and acquisitions. Prior to joining the Firm, Rapinnart was legal counsel at two major corporations.

Recent Experience

Representation of a Thailand-based company engaged in the manufacture and sale of carbon black, which is supplied to global markets including Indonesia, Philippines, Malaysia, China, Korea, Taiwan and Australia, in the appeal process in relation to an environmental lawsuit claiming damages suffered from environmental impact from the carbon manufacturing operations.  

Representation of Posco Plantec (Thailand) Company Limited, part of the POSCO Group, a leading company in Korea and worldwide, in successfully resolving a USD 5.7 million arbitration in relation to the construction of a recycling plant.

Representation of PTT Public Company Limited, the largest corporation in Thailand, in litigation regarding engineering, procurement and construction contracts in relation to a pipeline project valued at more than THB 8.5 billion.

Representation of PTT Public Company Limited, Thai state-owned SET-listed oil and gas company, in resolving disputes in connection with the engineering, procurement and construction contracts for the Fourth Transmission Pipeline Project, valued at THB 2,261 million and USB 209 million.   

Representation of Thai Steel Cable Public Company Limited, a leading automobile parts manufacturing company, in litigation against its supplier for complex inherent defects in automobile parts.

Representation of DTAC TriNet in successfully defending a THB 449 million Administrative Court case in connection with CAT Telecom Public Company Limited and telecommunications regulations.

Representation of Total Access Communication Public Company Limited (DTAC), one of the largest mobile and telecommunication providers in Thailand, in successfully resolving an administrative case and having an injunction lifted in relation to a high profile dispute with CAT Telecom Public Company Limited regarding a concession contract valued at THB 3.5 billion. 

Representation of Mitsui Sumitomo Insurance Company Limited, a renowned international insurance group and part of the third largest property insurance company in Japan, in a THB 2.154 billion (approximately USD 72 million) litigation claim involving a major automotive company. 

Representation of PTT Public Company Limited in litigation regarding a natural gas price and electricity charges in Thailand between 2012 and 2014. The dispute involved the complex energy market and related energy regulations in Thailand.   

Assisting Global Power Synergy Public Company Limited in regard to a transactional dispute concerning the acquisition of a power plant of another leading power plant owner in Thailand.  

Assisting Global Green Chemical Public Company Limited in criminal cases against its senior management and its suppliers in relation to systematic fraud valued at approximately THB 2,100 million (approximately USD 70 million) at the Economic Crime Suppression Office.

Representation of one of the largest latex manufacturers in the world in the successful resolution of a dispute regarding a corporate matter and a joint venture agreement with a foreign party.

Representation of Silesia Flavors (Thailand) Company Limited in the Intellectual Property and International Trade Court in relation to trade secrets and contract disputes involving distributorship and the sale of flavor codes. 

Representation of Pacific Phuket, Co., Ltd., one of the largest property development companies in Phuket, Thailand in a dispute at the Singapore International Arbitration Center in connection with the construction, management and operation of a hotel.

Representation of an engineering and construction company in arbitration proceedings claiming over THB 10 billion compensation from a Thai government authority for wrongful termination of a concession contract.

Representation of Akara Mining Public Company Limited, a gold-mining company and subsidiary of Kingsgate Consolidated Limited, in defending a complaint regarding environmental issues in the Administrative Court.

Representation of PTT Public Company Limited in the largest market capitalization on the Stock Exchange of Thailand as a result of the corporatization and privatization of the Petroleum Authority of Thailand.  In the Supreme Administrative Court, the client succeeded in having a suit attempting to de-list and privatize it dismissed.  This high-profile win helped to prevent severe damage to the structure of Thai capital markets.

Representation of the St. Regis Hotel with respect to an environmental law dispute before the Central Administrative Court. 

Representation of Trans Thai-Malaysia (Thailand) Limited in relation to the dispute on revocation of a certification of utilization of land (Nor Sor 3) in Chana District, Songkhla Province.

Advising and representing various clients in disputes in civil, criminal and administrative matters.


‘Thailand’, Restructuring and Insolvency - Getting the Deal Through (Law Business Research 2013-2016)


LL.M., International Commercial Law, Nottingham University, UK, 1997

LL.B., Thammasat University, 1992

Thai Bar Association, admitted 1994

Lawyers Council of Thailand, admitted 1993




Thai, English

Recent Accolades

Outstanding, Dispute Resolution, Asialaw Profiles, 2019-2022

Tier 1 – Dispute Resolution, The Legal 500, 2017-2022

Recommended Lawyer, Dispute Resolution, The Legal 500, 2015, 2018-2022

Recommended Lawyer, Telecommunications, The Legal 500, 2018-2019

Tier 1 - Commercial and Transactions, Government and Regulatory, Benchmark Litigation, 2019-2022

Leading Lawyer, Energy and Infrastructure Disputes, IFLR 1000, 2015-2017

Firm of the Year – Thailand, Benchmark Litigation Awards, 2020

Firm of the Year – Thailand, International Arbitration, ASIAN MENA Counsel In house Community, 2018

Firm of the Year – Thailand, Asialaw Dispute Resolution Awards, 2015, 2017

© 2009-2022 WEERAWONG C&P. All rights reserved. Privacy Notice | Contact us