U Maung Maung Oo, is the Vice Chairman of EFR Group of Companies. U Maung Maung Oo holds Bachelor of Science from University of Yangon, International Business Finance and Financial Management Course Certificate (2002), Diploma in Maritime Law from University of Yangon (2003) and Certificate in Multimodal Transport from MIFFA & AFFA.

In 1996, U Maung Maung Oo joined EFR Freight Forwarding & General Services Co., Ltd as a marketing manager. In 2001 April, U Maung Maung Oo was assigned to work together World Class Container Carrier and Shipping agency as General Manager up to 2007 Oct. With his gained knowledge and different management skill gained throughout his life, U Maung Maung Oo is currently a member of the board of directors and the Vice-Chairman of EFR Group of Companies and also a member of the board of directors of Myanmar International Freight Forwarders Association (MIFFA).