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GBS operates a clear governance model. The management of the firm is the responsibility of the Management Committee, chaired by the managing partner. The Management Committee is responsible for the firm's strategy, finances and profitability, the firm's growth and the development of its competitive position.

Duong Ngoc Dung (Mr.)
Managing Partner

Duong Ngoc Dung drives strategic partner development, industry alliances, and new business initiatives for GBS. He has successfully developed win-win relationships with industry leading Multi-National companies.

Duong Ngoc Dung’s career of creating collaborative business relationships that deliver enterprise-class solutions to Global hundreds customers spans over 13 years. Prior to joining GBS, Dung was responsible for developing marketing campaign, establishing and growing partner / re-seller relationships with IDC (Vietnam), HPT Vietnam Corporation and International Language Academy (ILA Vietnam), Viet Capital Bank & Securities. His experience includes senior business development and product management positions with a number of innovative companies and is a founding team member of Lucky Star Co., Ltd (Vietnam), Sun Co., Ltd and HTC Advertising Corporation.

Dung has brought several evolutionary and revolutionary solutions to market through successful partnerships. Dung holds a Bachelors Degree in Business & Legal consulting from Dong Do International University, Hanoi, Vietnam, a Marketing Diploma from Institute of Applied Marketing and a Diploma in Business Management from Ho Chi Minh University of Economics.


Nguyen Minh Duc (Mr.)
Partner  (Hanoi Office)

Duc is responsible for day to day management of DNAS, an associated firm with GBS in Hanoi. Prior to the foundation of DNAS, Duc gained significant experience in legal and advisory businesses from his nearly 6 years of employment with KPMG, VILAF, VCI Legal, VinaSecurities, a subsidiary of VinaCapital and Techcombank working concurrently as a commercial lawyer, legal counsel and corporate finance consultant.

His practice focuses on corporate clients in various fields of business from commercial, taxation, construction and real estate to M&A transactions, securities, corporate finance, banking, and insurance.

In addition, Duc is also an active member of CFA and financial advisory communities in Vietnam.

Sebastian Pawlita (Mr.)
Partner (Myanmar Office)

Sebastian is qualified as lawyer and tax advisor in Germany and has been in Myanmar since January 2013. Prior stations include a Big Four accountancy company, a British law firm and the Ho Chi Minh City office of a German legal and tax advisory practice. Sebastian was then partner at two law firms in Myanmar before setting up Lincoln. Chambers and Partners ranks him as a Band 3 lawyer. Sebastian speaks English, Japanese and German.

Currently, Sebastian is Managing Director of Lincoln Legal Services (Myanmar) Ltd., an associated firm with GBS in Myanmar


Nguyen T. Ngoc Diep (Ms.)
Partner - Deputy Director

Ms. Nguyen Thi Ngoc Diep is in charge of Education and Human Resource business for GBS and its clients.

With 10 years working in the Education Industry, she has good relationships with education and training division in almost of Vietnam and secondary schools, colleges and universities, to help the private school establish training program and they can give Vietnamese students good knowledge and be able to continue oversea.

Prior to GBS, Diep worked as HR Director Sao Bac Dau Technology Group, Digiworld Corporation, Phu Gia Securities JSC. She has a lot of HR Experiences, currently she is a member of HR association in Ho Chi Minh City and she is consulting about HR to help medium and small companies to build policy regime, human resource strategy and other works in this area.

Philip TTissot (Mr.)
International Client Service Manager (Malta Office)

Philip has over 30 years’ experience of assisting companies internationalise their business and is an expert in financial and economic reporting, trade and investment promotion, global trade policy, intellectual property and immigration matters. His last Diplomatic posts were as Ambassador and Deputy Permanent Representative to the United Nations, the World Trade Organisation and other international organisations in Geneva. He previously served in London, Nigeria, Canada, the US, Malta and Hong Kong and he also took on various other assignments in Africa and the Middle East. 
His role is to develop the company’s footprint in the Far and Middle East by assisting clients with tax efficiency and wealth management services, particularly those looking to relocate to Malta or who would like to take advantage of the benefits of Malta citizenship and/or residency schemes. Philip is an English and French speaker.
Currently, Philip is head of the Far and Middle Eastern Desk, BT International Limited, as associated firm with GBS in Malta. 

Chu Hai Yen (Ms.)
Director of The Financial Consulting & Accounting

Ms. Chu Hai Yen is one of the key members of GBS. She is Director of The Financial & Accounting Consulting Department of GBS. With more than 10 years experience in finance and accounting field as well as tax advisor, she is one of active members who contributed to make GBS's Finance and Accounting department and its clients to be stronger. She plays an important role in the management and supervision of  financial enterprises, implementation of accounting policies consistent with healthy development requirements based on the company's compliance and risk management with accounting standards and government's regulations to ensure the truthfulness and accuracy of financial accounting reports, assist customers in planning the creation of risk management procedures, support advice to customers in the contracts related to credit and attract fund raising ...

Prior to joining GBS, Ms. Yen has held important positions in large corporations such as Chief Financial Officer of Global Auto, Manager of Investment Department of the VM Group (specializing in the authorized import  Volkswagen Brand  and provide after sales services for customer which own these cars as well as authorized assembler and distributor of Hyundai Group's Porter light trucks), Finance & Accounting Manager of Vinatrust ( specializing in real estate business and provide F&B services), and Treasury Specialist of Prudential Vietnam. Furthermore, Ms. Yen is also a Finance Director of VietCapital Securities - One of the leading securities company in Vietnam.

She has a Accounting and Auditing Bachelor Degree and Business Administration Bachelor Degree of The University of Economics of HCM City  as well as she has completed  a short course about  Business English Communication of Australian Magill training school , had excellent  CFO certificate of The University of Economics of HCM City . She is currently studying CPA Australia.


Do Minh Tuan (Mr.)
Partner (based in Ha Noi)

Mr. Do Minh Tuan is in charge of corporate consultancy. Mr. Do Minh Tuan is the Member of Hanoi Bar, member of Vietnam Tax Consultant’s Association (VTCA) and the board of technical assistants of the Trade Remedies Council under the Chamber of Commerce and Industry of Vietnam. Mr. Tuan has nine – year experiences as the corporate solicitor. Mr. Tuan used to work for WINCO which specializing in Intellectual Property consultancy and LuatViet Advocates & Solicitors. Mr. Tuan has a strong point in foreign investment, M&A, taxes and labor. Mr. Tuan has provided consultancy to Modern Food, Hitachi, Naigai Nitto, Cometco, EEI., Inc, VHR, Spirit of Enterprise (a non – profit organization), Hai Phong vegetable and fruit exportation and importation joint stock company, Korea Power Engineering Company (KOPEC), NCI (Vietnam), RACO, and etc.

Tuan has a Bachelor of Laws, Hanoi University of Law, Hanoi, Vietnam.


Trinh Van Thanh (Mr.)

Trinh Van Thanh laid the foundations of GBS in 2002 to fulfill his innate (deep-seated) desire of being an entrepreneur. GBS emanated with a vision of utilizing solutions for solving marketing problems. Under the dynamic leadership of Thanh GBS, today, stands as the industry leader in its business space. He has personally been responsible for the company's success in the fiercely competitive local market. His astuteness and strategy has been the pillar of GBS’ success.

Thanh is a widely known advertising professional in the industry and has been invited as a speaker at several international conferences.

Prior to GBS, Thanh enjoyed a flourishing career at HTC Advertising Corporation and Dong Da Trading & Service Company in Hanoi Capital. Thanh has a Bachelor in Economical Law from Dong Do University, Hanoi, Vietnam.

About GBS:

Global Business Service (GBS) Co., Ltd is a leading commercial law firm in Vietnam providing business legal services, investment consulting, and other business support service (company formation, license arrangement, commercial agreements, mergers and acquisitions, shareholder arrangements and disputes, work permit, employment contracts, tax, consulting and financial advisory and executive search services).

The GBS organization is focused on helping senior management and owners of mid-market organizations to reach their goals by providing practical, customized solutions and identifying and pursuing business opportunities in Vietnam.

Contact us today via email: This email address is being protected from spambots. You need JavaScript enabled to view it. or call: (+84-28) 35002828 for more information about our services or to request an estimate for your project.


GBS is one of the best business law firms in Vietnam with a network South East Asia, Middle East, Japan, HongKong, Malta and Poland.

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Contact Info

GBS Co., Ltd
8th Floor , Trade Centre Building, 135A Pasteur Str, Ward 6, Dist. 3, Ho Chi Minh City, Vietnam

Hotline | Whatsapp | Viber | iMessage: (+84) 903189033

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(+84 - 28) 3500 2828


8.00 am to 5.00 pm