Projects and energy in Thailand

Allen & Overy (Thailand) Co, Ltd

The projects and energy practice at Allen & Overy (Thailand) Co, Ltd provides English and Thai law advice across a range of transactional projects work, with notable ‘expertise in project finance’, as well as handling airports and rail infrastructure matters. The team, which is jointly led by Stephen Jaggs and the ‘proactiveSarah Wilson, acts for clients including financial institutions, multilateral agencies and export credit agencies in this space. Jaggs has considerable expertise in the development of the infrastructure and power sectors in Thailand and the wider Asia Pacific region, while Wilson advises on cross-border energy projects. Counsel Sadi Tanmanatragul focuses on power projects and project financing transactions.

Practice head(s):

Stephen Jaggs; Sarah Wilson

Other key lawyers:

Sadi Tanmanatragul


Expertise on project finance and market knowledge in Thailand. The team takes a commercially sensible approach, are great on management of local law issues and take a positive, fun approach to work and clients.’

‘Stephen Jaggs, Sarah Wilson and Sadi Tanmanatragul work very well together as a team and are effective in allowing clients to work towards deadlines. Great understanding of legal issues and market positions.’

‘Sarah Wilson can work with clients in a very proactive manner. Clients often do not have any legal background, so they may not imagine how to streamline issues. She can provide guidance to clients from the preliminary stage and provides solutions in a very friendly manner.’

Sarah Wilson is an excellent lawyer with deep knowledge of Thai cross border energy projects. She manages clients and teams exceptionally well and is a pleasure to work with as international counsel given her long standing knowledge of the projects and responsiveness.

Key clients

Xekong Thermal Power Plant Company

Phonesack Group Limited

Electricity Generating Public Company Limited (EGCO)

Chaleun Sekong Group Co., Ltd.

EDL Generation Public Company (EDL-Gen)

Xe-Pian Xe-Namnoy Power Company Limited (PNPC)

SK Engineering and Construction Co. Ltd

Korea Western Power (KOWEPO)

Ratchaburi Electricity Generating Holding Public Company Limited (RATCH)

Lao Holding State Enterprise (LHSE)

Kansai Electric Power Co. Inc.

EGAT International Company Limited

Asian Development Bank


Credit Guarantee and Investment Facility

Siam Commercial Bank Public Company Limited

Thailand Export-Import Bank

Work highlights

  • Advising Xekong Thermal Power Plant Company and Phonesack Group on the development and financing of the 1,800MW cross-border Xekong coal-fired power plant project in Lao PDR with offtake by Electricité du Cambodge (EDC).
  • Advised Siam Commercial Bank Public Company Limited and the Export-Import Bank of Thailand (the lenders) on a loan provided to Gulf Tay Ninh 1 Joint Stock Company (the borrower) to fund the refinancing (by way of repayment) of an intercompany loan owed by the borrower to Gulf International Holding Pte. Ltd in respect of the 68.8MW TTCIZ-01 solar project in Trang Bang, Tay Ninh province in southern Vietnam.
  • Advised energy company Ørsted (as sponsor) on the simultaneous construction arrangements and sale (and related purchaser financing arrangements) of a 50% stake in the 605.2MW Greater Changhua 1 offshore wind project in Taiwan.

Baker McKenzie LLP

Baker McKenzie LLP handles domestic and international development and project finance matters, as well as M&A transactions in the energy and infrastructure sectors. The team acts for both sponsors and lenders in project financing transactions, and is well-placed to leverage the firm’s global presence to act on cross-border projects. Sawanee Sethsathira leads the practice and is noted for her expertise in project financing and development of energy, petrochemical and infrastructure projects. Viroj Piyawattanametha focuses on project financing in the power and infrastructure sectors, while Vit Vatanayothin advises on domestic and cross-border project development, an area in which associate Napas Na Pombejra is also active.

Practice head(s):

Sawanee Sethsathira

Key clients


PTT Group and its subsidiaries and affiliated companies

Gulf Energy Development Public Company Limited (GED)

EGAT International (EGATi)

Bangkok Expressway and Metro Public Company Limited (BEM)

B.Grimm Power Limited and Amata B. Grimm Power

Bangchak Petroleum Public Company Limited


Bangkok Bank Public Company Limited

KASIKORNBANK Public Company Limited

Work highlights

  • Advised five syndicated lenders (Bangkok Bank Public Company Limited, Export-Import Bank of Thailand, Government Savings Bank, KASIKORNBANK Public Company Limited and The Siam Commercial Bank Public Company Limited) on six project financings of seven power plants across the country as part of the Electricity Generating Authority of Thailand’s (EGAT) third-generation SPP program and SPP replacement program.
  • Advised B.Grimm Power Public Company Limited and Truong Thanh Viet Nam Group Joint Stock Company on the project financing of a 257 megawatt solar power plant in Phu Yen Province, Vietnam.
  • Advised Export-Import Bank of Thailand (EXIM Thai) and Industrial and Commercial Bank of China (Thai) Pubic Company Limited on the project financing of a 50 MWp solar power plant in Phu Yen Province, Vietnam, being developed and operated by Super Energy Corporation Public Company Limited.

Chandler MHM Limited

Equipped with ‘quality, knowledge and experience on project finance, especially in the energy and power sectors’, Chandler MHM Limited acts for local and international lenders and sponsors on power and infrastructure projects, and benefits from the firm’s presence in Asia Pacific to handle cross-border work. ‘Terrific operatorJessada Sawatdipong heads up the practice and specialises in project finance, with a particular focus on cross-border natural resources and energy matters. Joseph Tisuthiwongse is active in the renewable energy sector, while counsel David Beckstead is noted for his ‘commercial sense and industrial insight’ when representing lenders and sponsors in a range of projects.

Other key lawyers:

David Beckstead


‘Chandler MHM teams are equipped with quality, knowledge and experience on project finance, especially for energy and power sector. They can provide the flexible solution and suggestions for what is a “must have”, “should have” and “nice to have”.’

‘Jessada Sawtidpong is a terrific operator with the ability to manage complex lending groups and drive solutions to difficult issues. Undoubtedly the premier banking and projects lawyer in Thailand.’

‘David Beckstead, counsel, was the one we relied on. While bulk of communication was with other associates, he presented as appropriate to give us advice with commercial sense and industrial insight professionally.’

‘An outstanding practice with a combination of Thai and international counsel which has the required depth and breadth of resource. They can handle a broad range of work and can offer creative solutions to complex problems. Has a strong reputation and can deliver.’

Absolutely the best energy and finance team in Thailand. Incredible depth across banking, security issues, project development and land issues. Out performs the international firms in Thailand with complete fluency across Thai and English. Widely acknowledged by leading banks in the market as being the lender firm.

Jessada Sawtidpong is a terrific operator with the ability to manage complex lending groups and drive solutions to difficult issues. Undoubtedly the premier banking and projects lawyer in Thailand.

Key clients

B.Grimm Power Public Company Limited

Bangkok Bank Public Company Limited

BCPG Indochina

China Development Bank

China Harbour Engineering Company Limited

Export-Import Bank of Thailand

Joint Stock Commercial Bank for Investment and Development of Vietnam

Lomligor Co., Ltd., a subsidiary of BCPG PLC

TEPCO Power Grid, Incorporated

The Siam Commercial Bank Public Company Limited

Work highlights

  • Advising B.Grimm, the sponsor, on the non-recourse financing for the development of 7 small gas-fired power plants which will have a combined capacity of 980 megawatts with an approximate total value of THB 40bn.
  • Advised the lenders on the financing for the development and operation of a 257 megawatt (MW) solar power plant in Vietnam.
  • Assisting Bangkok Bank Public Company Limited (“BBL”) and China Development Bank, Guangdong branch (“CDB”), as Thai lenders’ counsel with the financing of a 343km fuel oil pipeline covering 5 Provinces from Saraburi Province to Khon Khaen Province and associated storage facilities in Khon Kaen Province.

Hunton Andrews Kurth LLP

The ‘experienced’ team at Hunton Andrews Kurth LLP advises on all aspects of projects and energy matters, from investment and financing to construction and operation work, as well as assisting clients with cross-border acquisitions of traditional and renewable energy. Edward Koehler handles multi-jurisdictional energy and infrastructure M&A transactions, acting for sponsors, lenders and government enterprises, while James Bradley focuses on power plant construction compliance, projects and acquisition work in Thailand, Cambodia and the Philippines. Chumbhot Plangtrakul has particular experience in renewable energy and battery energy storage projects.


‘Very experienced lawyers, who protect our interests and can handle complex issues.’ 

Mr Ed Koelher, Huntons’ Thailand Managing Partner is so resourceful and outstanding on not only on legal matters, strategic insight, negotiation skill but also people skills. We always have him as our counsel on challenging first mover projects.

Key clients

Asian Development Bank

Banner Engineering Corporation

Banpu Public Company Limited

BlueRun Ventures

Bunge Limited

GNPower Group Companies

Electricity Generating Public Company Limited

Energy Absolute PLC

Impact Electron Siam Company Limited

Infunde Development Pte. Ltd.

KASIKORNBANK Public Company Limited

KB Kookmin Bank

Quezon Power (Philippines), Limited Co.

San Buenaventura Power Ltd. Co.

Work highlights

  • Represented EGCO in the 972 MW gas-fired power plant in US.
  • Advised BPP in $66m acquisition of 37.6 MW wind project in Vietnam.
  • Advised EGCO in 1,120 MW coal-fired power project in Vietnam.

Weerawong, Chinnavat & Partners

Weerawong, Chinnavat & Partners acts for its roster of clients, including government agencies, private entities and financial institutions, on infrastructure, project finance, as well as renewable energy matters. The practice is led by Weerawong Chittmittrapap, who handles some of the largest infrastructure projects in Thailand, such as the construction of airports, mass transit systems and ports. Jirapat Thammavaranucupt also has experience in advising on infrastructure projects and PPP projects.


‘Very professional, dedicated and offer full support when we require on urgent issues. Strong knowledge in subject and well connected.’

Key clients

Office of the Eastern Economic Corridor (EEC), Government of Thailand

PTT Public Company Limited

Port Authority of Thailand

Department of Highways

Bangkok Mass Transit System Public Company Limited

BTS Group Holding

Northern Bangkok Monorail Company Limited

Eastern Bangkok Monorail Company Limited

State Enterprise Policy Organization (SEPO), Ministry of Finance, Government of Thailand

Global Power Synergy Public Company Limited

PTT Exploration and Production Public Company Limited

PTT Global Chemical Public Company Limited

Wind Energy Holding Co., Ltd.

Planet Energy Holdings Pte. Ltd.

Thai Oil Public Company Limited; Thaioil Marine Co., Ltd.

TTCL Public Company Limited (TTCL), an international engineering company

DFDL Legal & Tax

DFDL Legal & Tax acts for domestic and international clients, including major energy conglomerates on project finance and development, transactions and regulatory matters in relation to energy, mining and infrastructure projects in Thailand and across Southeast Asia. The practice is jointly led by managing partner Audray Souche who has experience in cross-border energy and infrastructure project developments and financing, and Gert Meersman, who leads the regional energy, mining and infrastructure practice.

Practice head(s):

Audray Souche ; Gert Meersman


‘The team is truly “hands-on” and always delivers usable advice.’

Key clients

B.Grimm Power Public Company Limited

B.Grimm Solar Power, Inc (Project Company)

A Consortium of Thai lenders (Krung Thai Bank as Intercreditor Agent)

Lao-China Power Investment Co. Ltd. (LCPC)

International Finance Corporation (IFC)

TSBP Sekong Power and Mineral Company Limited (a subsidiary of Investment and Hydropower Consultant)

Xekong Thermal Power Plant Co. Ltd. (a subsidiary of Phonesack Group)

Abt Associates / USAID

Work highlights

  • Acting as the borrower’s counsel to B.Grimm Power Public Company Limited, negotiating and drafting financial documents and closing assistance to achieve financial close.
  • Acting as lead counsel for B.Grimm Power Public Company Limited (Sponsor) B.Grimm Solar Power, Inc (Project Company) on a multi-sites solar rooftop projects in the Philippines, totalling of 12MW for a large scale food manufacturer.
  • Negotiating the Concession Agreement and Land Lease Agreement for B.Grimm Power Public Company Limited (Sponsor)B.Grimm Solar Power, Inc (Project Company) with the GOL, drafting and negotiating the Power Transmission Agreement with EDL, drafting and negotiating Shareholders’ Agreement between China Southern Power Grid and EDL and advising on the regulatory framework, permits and licenses and all other aspects of the project.


Linklaters is noted for its expertise across the oil and gas, renewable energy, LNG, natural resources and mining sectors, and covers a range of energy and projects transactions domestically and across the region. The team acts for Thai public and private companies and financial institutions on project financing and acquisition matters. Practice leader Wanwisar Nakarat specialises in project financing, while Wilailuk Okanurak has experience in handling the transactional and financing aspects of energy projects in Thailand and Southeast Asia. Associate Patsharamon Manathat advises clients on project financing and development.

Practice head(s):

Wanwisar Nakarat


The firm has complete one stop services for legal matters. The partner and associates are helpful throughout the transactions. The Partner and the firm have outstanding negotiation skill in the market. The partner has experiences in various sectors and various types of products.

Key clients

Bangkok Bank Plc.

Bank of America Merrill Lynch

Charoen Pokphand Group


Credit Suisse

Dow Chemical

Global Power Synergy Public Company Limited

Global Renewable Power Company Limited

Gulf Energy Development Plc.

Gunkul Public Company Limited

Italian-Thai Development Plc.


Krung Thai Bank Plc.

Krung Thai Asset Management Plc.

Mitsui & Co.

Morgan Stanley

Phatra Securities

PTT Global Chemical Plc.

PTT Exploration and Production Plc.

RATCH Group Public Company Limited

Standard Chartered Bank


Thaicom Public Company Limited

Thai Oil Public Company Limited

Work highlights

  • Advised the Consortium of Charoen Pokphand Holding Co. Ltd. and Partners in the bidding and all contracts for the development, construction, operation, financing and maintenance of the $7.5bn High Speed Rail Linking Three Airports Project by the State Railway Authority of Thailand.
  • Advised RATCH Group Public Company Limited on its US$159m acquisition of a 49% stake investment in An Binh Energy and Infrastructure Fund which has 45% indirect stake in Thang Long Power Plant, Thailand.
  • Advised PTT Global Chemical Public Company Limited on its proposed combination of interests in the Chlor-Alkali and PVC businesses with AGC Inc. in Thailand and Vietnam and the subsequent creation of a joint venture.

Tilleke & Gibbins

Tilleke & Gibbins advises international and domestic clients on financing, licensing and investment matters in renewable energy and infrastructure projects. Joseph Tomkiewicz, who is noted for his expertise in transactional and litigation work with leading oil and gas companies, jointly heads up the team alongside Supasit Boonsanong, who advises Thai government authorities on legislative amendments to the country’s petroleum laws. Cynthia M. Pornavalai is a key contact in the team and handles commercial transactions in the energy sector.

Other key lawyers:

Cynthia M. Pornavalai


Tanadee Pantumkomon has given very professional helpful advice.

Supasit Boonsanong has worked for us a very long time and fully understands our business with all legal and contractual issues.

Key clients

Wood Plc/Amec Foster Wheeler


KPS Capital Partners

PEA Encom

Petroleum Institute of Thailand

PTT Group Companies

Rojana Energy


Thai Ministry of Energy, Department of Mineral Fuels

United Power of Asia Public Company Limited

Work highlights

  • Represented a consortium member in bidding for the Map Ta Phut Industrial Port Phase 3 Development Project, part of the first mega infrastructure development project in the flagship Eastern Economic Corridor (EEC) scheme in Thailand.
  • Advised an asset management firm in a project to build, own, and operate a desalination project, as part of a public-private procurement project in southern Thailand.
  • Engaged to advise a major Chinese construction company on various elements of the Bangkok–Nong Khai high-speed railway project, the first high-speed rail line in Thailand.

Watson Farley & Williams (Thailand) Limited

Praised for its team ‘collaboration mixed with great industry knowledge’, Watson Farley & Williams (Thailand) Limited handles the full spectrum of renewable energy matters and advises developers on wind, solar, waste and energy power projects. The practice is also well-placed to draw on the expertise of the firm’s litigation team when renewable energy disputes arise. Christopher Osborne, who advises on all stages the energy project lifecycle, including regulatory matters and financial agreements, jointly leads the practice alongside Steven Burkill, who represents clients in renewable energy disputes.


‘The ability to pivot and advise on the legal matters that we are facing has been a major factor in maintaining our enagewment with WFW in Thailand. Advice is accurate and meets our need to mitigate the legal and commercial challenges we have on a day-to-day basis. High collaboration mixed with great industry knowledge.’

‘Chris Osborne – knowledgable, straight talking and highly effective.’

‘The depth of knowledge and experience of the legal team combined with technical understanding is extraordinary, we have retained them to do work on highly specialized matters in other regions of the world with outstanding outcomes. It is an extraordinary team.’

Key clients

Bangchak Corporation Public Company Limited

Christiani & Nielsen Energy Solutions

Department of Mineral Fuels, Ministry of Energy, Government of Thailand

Greenovation Power

Synova Cooperatief U.A.

Wind Energy Holding Co Ltd

Kudun & Partners

Kudun & Partners advises clients on a range of energy and infrastructure matters, and is particularly active in the renewable energy sector. Founding partner Kudun Sukhumananda, who acts for Thai and international clients on infrastructure funds, jointly leads the practice group alongside Kom Vachiravarakarn, who handles transactions in the renewable energy sector. Saravut Krailadsiri is noted for his experience in the oil and gas industry, and provides litigation and tax advice in this space.

Other key lawyers:

Saravut Krailadsiri 

Key clients

B.Grimm Power-Energy China Consortium

BG Container Glass Public Company Limited (BGC)

B.Grimm Power Public Company Limited

Eastern Water Resources Development and Management

NCP Consortium

Scan Inter Public Company Limited


Nathalin Group

Prima Marine Public Company Limited

Asia Green Energy Pcl.

Bangkok Glass Public Company Limited

BG Energy Solution Company Limited

Work highlights

  • Represented B.Grimm Power Public Company Limited on the development and operation of the Hybrid Solar-ESS-Gas-Fired Combined Cycle Power Plant Project (totalling 148MW) in U-Tapao International Airport in collaboration with the Office of Eastern Economic Corridor.
  • Represented CNNC Joint Venture (consisting of three entities, NTL Marine, a subsidiary of Prima Marine PCL., Nathalin and Zhonggang Construction Group from China) in connection with the submission of bidding proposal to the Port Authority of Thailand for the Construction Work for Laem Chabang Port Development Project Phase 3 (Part 1) Off-Shore Construction.
  • Represented BG Energy Solution Company Limited, an affiliate company of BG Container Glass Public Company Limited (BGC) and Bangkok Glass Public Company Limited, as lead counsel on a cross-border investment transaction to Vietnam on its acquisition of 70% of existing shares in each My Son 1 Solar Power Joint Stock Company and My Son 2 Solar Power Joint Stock Company.

Norton Rose Fulbright

Norton Rose Fulbright acts for clients on renewable and conventional energy matters, as well as PPP projects. Tassanai Kiratisountorn heads up the practice group and advises lenders and borrows on transactions in the renewable energy sector, while senior associate Chormas Premsirinirund focuses on project financing.

Practice head(s):

Tassanai Kiratisountorn

Other key lawyers:

Chormas Premsirinirund

Siam Premier International Law Office Limited

Siam Premier International Law Office Limited handles a range of contentious and non-contentious projects and energy matters, including joint venture agreements, project financing and disputes arising out of energy projects. Rawat Chomsri, who advises clients on project investments in Thailand and Laos, jointly heads up the practice alongside Chatchavej Chitvarakorn, who has experience in infrastructure and construction work, as well as PPP matters.

Key clients

The Port Authority of Thailand

Chevron (Thailand) Limited

Electricity Generating Authority Thailand

Irradiance Solar Co., Ltd.

Amata Corporation Public Company Limited

Prime Road Power Public Company Limited

PTG Energy Public Company Limited