Co-Founder / C.E.O.

David Jeon is the Co-Founder & C.E.O. of One GE Accounting | Consulting. He is responsible for all aspects of the firm’s strategy, team and operations across all services.


Over the course of nearly 15 years, he has served in a variety of leadership roles, including most recently served as director at Deloitte, South Korea (since 2007), before that, as regional leader of Korean Service Group (KSG) at Deloitte Middle East, Dubai (from 2014 to 2016).


He has a long and successful record of helping clients with audit, tax and management consulting including financial advisory. He has particular depth working with significant clients across construction, trading and manufacturing industries, but draws upon a variety of cross-industry experience as well.


David received his Bachelor’s degree in Business Administration and obtained Certified Public Accountant (CPA) and Certified Tax Accountant (CTA) qualifications in South Korea.


Accounting | Auditing | Tax | Management Consulting (incl. Financial advisory) | ERP - SAP


Co-Founder / Managing Partner

Brandon Han is Co-Founder & Managing Partner of One GE Accounting | Consulting. He is involved in all aspects of developing the firm’s growth strategy, managing operations & workforce and build value for stakeholders.


Brandon Han has gained extensive knowledge about the financial markets and instruments during the course of 10+ years career. Through the years, Brandon has worked in various fields such as Institutional & Investment Banking, Investment advisory, Research, Business management and Accounting & Finance in few different countries (Australia, Singapore, South Korea and U.A.E.).


Prior to joining One GE Accounting | Consulting, Brandon served as Associate Director at First Abu Dhabi Bank (previously known as National Bank of Abu Dhabi) in Corporate and Investment Banking (CIB) Group. In his role, Brandon provides specialized financial solutions and advices to a wide range of institutional clients but primarily covering energy & resources, infrastructure, public sector and construction sector. Brandon is also actively engaged in project finance and syndicated facilities origination & structuring (loans and letter of guarantees).


Brandon received a Bachelor’s degree in Accounting & Finance (Double Major) and earned CPA (Certified Practicing Accountant) qualification in Australia.


Accounting | Tax | Corporate Finance | Investment (Corporate) | Financial Management


Executive Director -


Elin Sung is executive director of One GE Accounting | Consulting. She is leading tax services team and responsible for solving clients’ tax related issues including tax dispute, tax compliance, tax accounting and tax advice.


Prior to her current role, she spent more than 13 years at one of big 3 tax firms in South Korea, Yeil Tax Accounting Corporation where, as Director, involved in all aspects of managing tax services and dealt with all types of taxes such as corporate tax, individual income tax, indirect tax - VAT (Value Added Tax) / excise tax, capital gain tax, inheritance tax, gift tax and so forth across a variety of industries and served from SMEs to Institutional clients. Furthermore, she has extensive experience and knowledge in tax refund reviews, managing tax disputes, tax audit, defense and appeal services with tax authorities and tax advice to help client to develop sound policies and processes.


Elin holds a bachelor’s degree in Business Administration and obtained Certified Tax Accountant (CTA) qualification in South Korea.


Accounting | Tax | Financial advisory | Business Management


Executive Director -


Eugene Choi is executive director of One GE Accounting and Consulting with overall responsibility for Information Technology services – covering ERP / CRM Implementations, SAP Advisory, IT Audit, IT Solution & Strategy Development and Support and Upgrades services.


Before joining One GE Accounting and Consulting, he worked as Business Process Principal Consultant operating his own firm for more than 17 years. During his career as the Principal Consultant, he has successfully completed several mega projects worked with major corporates (e.g. Samsung Electronics, Hyundai Oilbank, Volvo Korea, Samsung Total, NH Bank and so forth) across many industries such as Oil & Energy, Bank, Service, Logistics, Manufacturing, Electronics, Heavy Industries and Retail in South Korea. He is expert in providing ERP/CRM solution, developing business process management systems &  IT infrastructure, database management, network solution, software programming and all kinds of IT related services.


Eugene received a Bachelor’s degree in Network Information Management and earned Microsoft Certification Professional & Microsoft Certification Application Development in South Korea.


ERP | CRM | IT Project Management | IT System & Process Development | Data Management | Software Programming | Application Development