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Mr. Arapat Sangkharat
Chief Executive Officer

Mr. Arapat Sangkharat has more than 24 years’ experience in financial services and management consulting in Asia and the United States. He joined the Company in August 2020 as Deputy Chief Executive Officer and as Regional Head of Transformation, Maybank Kim Eng Group and was subsequently appointed as Chief Executive Officer effective from 31 August 2021.

He is an executional strategist with expertise in business strategy, digital transformation, merger & integration and execution of innovation blueprints.  He worked with more than 20 financial services institutions including Siam Commercial Bank, Bank of NY Mellon, American Express and Citigroup over the span of his career with Deloitte and PwC.

He holds a Master of Business Administration in Financial Investments from the University of Southern California.

Mr. Koh Swee Ong
Chief Operating Officer


  • Master Degree  in Business Administration, Charles Sturt University, Australia


  • Diploma in Management from Malaysian Institute of Management, Malaysia




 (30 years in Maybank Group especially Brokerage industry)   

  2017 - Present

Chief Operating Officer: Maybank Kim Eng Securities (Thailand) Plc 


2013 – 2021

Regional Head, Operation, Maybank Group


2007 – 2013

Vice President, Head Stock broking Operations, Mayban Securities Sdn Bhd.


2005 - 2007

Head, Risk Management, Mayban Securities Sdn Bhd.


2002 - 2005

Head of Organization & Methods, Mayban Securities Sdn Bhd


2001 - 2002

Assistant Manager, Compliance, Mayban Securities Sdn Bhd.

  1989 - 2001 Stock Broking Operations, Mayban Securities Sdn. Bhd.
Mr. Vichet Pornsinsiriruk
Chief Information Officer


  • MBA, Thammasat University


  • Bachelor of Computer Engineering, Chulalongkorn University




Chief Information Officer
Maybank Kim Eng Securities (Thailand) Plc.


Mar 2002 – Dec 2005

Head of Information Technology Department
SIG Combibloc Co.Ltd


1999 – 2001

Head of Information Technology Department
SIG Combibloc Co.Ltd


1997 – 1999

Chief Operation Officer
Jardine Fleming Thanakom Securities Co.Ltd.


1993 – 1996

Information Technology Department Manager
Jardine Fleming Thanakom Securities Co.Ltd.


1990 – 1993

Assistant Vice President – Information Technology Department Securities One Plc.

Mr. Sittiporn Sorngarn
Managing Director Retail Business

He previously sat as Acting Managing Director on Infinity Wealth Futures Co., Ltd. in charge for Rubber Futures Trading. He was also the Vice President of Marketing of Classic Gold Futures Co., Ltd. In terms of experiences in securities brokerage firms, he worked for OSK Securities (Thailand) Co., Ltd. in the position of Senior Vice President of Risk Management, Vice President of Risk Management of KTB Securities (Thailand) Co., Ltd. Apart from experiences in Risk Management area, he has more than 10 years of experience in the marketing team of retails equities Kim Eng Securities (Thailand) Co., Ltd. (2002- 2007), Yuanta Securities (Thailand) Co., Ltd. (1998 -2002). Pacific Finance Securities (1994-1997). Previous to his work in retail equities, he worked as Head Section of Marketing at Multi Credit Corporation Co., Ltd.

Mr. Peerasit Chiwabhong
Managing Director Institutional Sales

Mr. Peerasit Chiwabhong has been working in the Finance and Securities business since 1990. Possessing a sound academic background in Finance, with extensive knowledge and relationships in the Financial Services industry, he has with him an extensive experience of more than 25 years in Thailand’s equities market and successful record of accomplishments. Mr. Peerasit currently holds the position of Head of Institutional Sales Department at Maybank Kim Eng Securities (Thailand) Public Company Limited (MKET).

Starting from scratch, he has successfully grown the business of the local institutional segment year after year. From zero client to the level that most of the leading Thai asset management companies are now trading with the Company as a reliable partner. More importantly, he is the one who was responsible for elevating Maybank Kim Eng Securities (Thailand) Plc up to become one of the leading institutional brokers in Thailand.

Prior to joining MKET in 1998, he started working at Siam Cement Trading Company (a trading firm of SCG) during Apr 1990 – Aug 1990, and then stepped into the equities market by joining Thai Securities Company (TISCO) as the marketing officer during Sep 1990 – Feb 1993. Later, he took the position of investment analyst at National Finance and Securities (Thanachart) during Aug 1993 – Feb 1995 before pursuing the Master’s Degree in Finance in the U.S. After graduated from the USA, he returned to Thailand and worked as an institutional sales at Nava Vicker Ballas Securities Company during Feb 1997 – Sep 1998 and has joined the Company since Oct. 1998.

He graduated from the Faculty of the Commerce and Accountancy with Bachelor Degree in Finance from Chulalongkorn University and got the Master of Sciences in Finance Degree from University of Colorado, Denver, U.S.A.

Mr. Prasert Tantayawit
Managing Director Investment Banking

Mr. Prasert Tantayawit  has been working in investment banking business for over 17 years. He has extensive experiences in advising enterprise clients in corporate restructuring, capital market fund raising through public offering and private placement of equity, debt  and hybrid instrument, listing on the SET, mergers & acquisitions, privatizations, business valuation, etc.


Prior to joining MKET in July 2015, Prasert worked for the Siam Commercial Bank’s investment banking (May 2012 – June 2015) being in charge of equity product advisory; led the investment banking team of TISCO Securities (September 2001 – April 2012) being responsible for the origination and execution most of TISCO’s investment banking transactions. He was a director of the Investment Banking Club in March 2010 – April 2012  and 2017-present.


He graduated from Faculty of Engineering (Mechanic), Chulalongkorn University and Master’s Degree from University of Texas at Arlington, U.S.A.



Ms. Panadda Tanchanchiwin
Managing Director Investment Management

Ms. Panadda has been working with Maybank Kim Eng (Thailand) since 2019. Ms. Panadda has more than 10 years of working experiences in Wealth Management, investing in both domestic and foreign funds in leading asset management companies and commercial banks.

Prior before joining with Maybank Kim Eng (Thailand), Ms. Panadda worked for Aberdeen Asset Management Company Ltd. as Head of Distribution, TMB Bank as Head of Wealth Banking and First Vice President,Head of Agent and Securities Service, GE Money Bank of Ayudhaya as Assistant Vice President / First Assistant VP Senior Relationship Manager and Standard Chartered Bank as Vice President of Transactional and Cash Management.

Mr.Sombat Jiwariyavej
Managing Director, Debt Capital Market (DCM)

Sombat has been working with Maybank Kim Eng (Thailand) since 2018 leading debt capital market and fixed-income businesses, to expand Maybank’s product offering to serve Thai and MNC corporate funding needs, as well as to increase investment opportunity to Thai institutional and individual investors.

Before joining with Maybank, Sombat has successfully initiated and expanded businesses for leading financial institutions such as Standard Chartered Bank, Nomura, KT Zmico and HSBC from 2009 to 2018 and before that he was a Treasury Product Specialist and a derivatives credit trader at Siam Commercial Bank between 2006-2009. He also has 8 years of experiences working with international credit rating agency Moody's Investors Service in Structured Finance teams in New York, London and Hong Kong.

Sombat holds an MBA from Zicklin School of Business, Baruch College in New York and a bachelor's degree in Computer Science from Thammasat University. He also receives certified training for executives, major in Mergers and Acquisitions from Booth School of Business, the University of Chicago, and Private Equity from Said Business School, the University of Oxford.