About Us

Established in April 2006, Conexus Mobile Alliance is one of Asia's biggest mobile alliances.The alliance is formed to primarily develop and enhance international roaming and corporate mobile services for greater convenience and ease of use for its members' customers. The alliance boasts a combined customer base of about 275 million mobile subscribers in members’ markets, and approximately 690 million when combined with its partner, Vodafone. The alliance is committed to promoting voice, video and data roaming via its members' GSM, W-CDMA, and LTE networks.

The alliance also aims to create a Virtual Home Environment for its member customers to experience seamless, convenient mobile-related services when they roam.

Board Members

Mr. Chan Kin Hung

Mr. Benjamin Tan

Conexus Deputy Board Chairman

Vice President - International Business

Benjamin Tan is Vice President for International Business at StarHub, a fully-integrated info-communications company in Singapore. Benjamin joined StarHub prior to its commercial launch in 2000, and is currently responsible for managing and developing StarHub’s relationships with international voice and mobile roaming partners around the world. Other areas of his responsibility include carrier wholesale channel, global alliances, international network strategy and product management.

Benjamin has been in the telecommunications industry for 22 years and has had a successful track record in sales and the international carrier business. Before StarHub, he was Regional Sales Manager for Hong Kong Telecom’s country office in Singapore, spearheading their sales expansion and business expansion in Southeast Asia. Benjamin began his career in the telecom industry at Telecom Equipment as an Account Manager looking after key MNC accounts.‪

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Mr. Katsuhiko Yamagata
NTT Docomo

Mr. Katsuyuki Takagi

Senior Vice President - Global Business Division

Mr. Katsuyuki Takagi was appointed Senior Vice President and Executive General Manager of Global Business Division in June 2017.

Prior to his current position, Mr. Takagi served many important roles at NTT DOCOMO, including Head of Investor Relations from July 2014 to June 2017 and Senior Manager of Global Business Division from July 2007 to July 2014, as well as Senior Vice President at NTT DOCOMO USA, Inc. overseeing the Finance, IR and PR activities of the Company’s New York-based subsidiary from July 2004 to July 2007.

Mr. Takagi started his professional career in the telecommunications industry when he joined Nippon Telegraph and Telephone (NTT) Corporation in 1988. After taking on various positions at NTT, he moved to NTT DOCOMO, Inc. in April 2000 to serve as Manager of President’s Office through June 2003.

Mr. Takagi holds a bachelor’s degree in law from Keio University in Tokyo, Japan (1988) and a MBA from MIT Sloan School of Management in Boston, USA (2004).

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Mr. Andrew Kwok
HHK Telecoms


Director - Roaming and Services Development
Hutchison Telecommunications (Hong Kong) Limited

Kenny Koo is currently the Director of Hutchison Telecommunications (Hong Kong) Limited responsible for Roaming and Services Development, heading all divisions of international mobile services, MVNO, wholesales, prepaid, products & services and business alliances of the Company.

Serving the Hutchison Telecom group over a decade, Mr Koo has held senior positions in sales and marketing in consumer and enterprise markets across Hutchison's telecom operations in HK, Macau, Vietnam and Indonesia in the past years. His expertise includes international business development, digital service transformation and alliance project management. Mr. Koo had represented the company to sit in the board of directors of industry alliances and associations and has been spearheading pioneering projects dealing with the regulatory institutions and strategic partners including Apple, Facebook, Whatsapp, Microsoft and Google. Mr. Koo graduated from the Chinese University of Hong Kong.

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MR. Pill Jai Lee

Executive Vice President - Head of Marketing Strategy Business Unit
KT Corporation

Mr. Pilljai Lee, as an Executive Vice President of KT, leads Marketing Strategy Business Unit (BU) and is responsible for development and execution of integrated product marketing strategy as well as strategic product portfolio management for mobile, roaming and data products.

In 2015, Lee led IPTV business of KT as the head of Media BU. In 2014, Lee was in charge of supervising wired product business including internet and wired telephone as the head of GiGA BU. While leading Product II BU in 2013, Lee managed both mobile product and wired product business of KT.

Lee received MBA from Thunderbird, the Garvin School of International Management, in the United States and B.S of Naval Architecture & Ocean Engineering from Inha University, in South Korea.

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Mr. Benjamin Ho


Executive Vice President & Enterprise & Carrier Business Unit
Far EasTone Telecommunications Co. Ltd

Dr. Mike Lee joined FarEasTone in November 2011 as Executive Vice President of Enterprise & Carrier BU.

Before joining FarEasTone, Dr. Mike Lee had an outstanding career and excellent management experience both in telecommunication and Internet industry. He led Tuntex Telecom building the GSM 1800 network in central and southern Taiwan in 1997, and assisted NCIC in obtaining fixed network license in 2000. Later, as President of Com2B Corp, Dr. Mike Lee and his team established the largest B2B e-auction platform in Taiwan. From 2007 to 2011, under Dr. Mike Lee’s leadership as President of FETC, ETC users exceeded 1.3 million.

Dr. Mike Lee holds both a master’s degree and Ph.D. in Electrical Engineering from State University of New York, Stony Brook. He received his bachelor’s degree in Electrical Engineering from National Taiwan University.

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Dr. Kaizad Heerjee

Ms. Herfini Haryono

Director and Chief of Wholesale and Enterprise Officer
PT Indosat

Herfini Haryono was appointed as a Director since 7 October 2015, she was appointed as Director and Chief of Wholesale and Enterprise Officer (DCWEO) effective as of 10 November 2015.

Previously she was Chief Technical Officer (CTO) since May 2014. She joined Indosat in early 2013, where she led various major projects including the Mobile Financial Project and Market Bite Size Project. She has concurrently serves as a Commissioner at Indosat subsidiary PT Lintasarta since June 2014.

She joined Indosat in early 2013, where she led various major projects including the Mobile Financial Project and Market Bite Size Project. She has concurrently serves as a Commissioner at Indosat subsidiary PT Lintasarta since June 2014. With more than 20 years of IT, network engineering and technical experience, Ms. Haryono has held many senior positions including as a Director and Commissioner of PT Telkom Metra from 2007 to 2013, Chief Technology and Information Officer and Director of Planning and Development of PT Telkomsel from 2009 to 2012, and Vice President at PT Telkomsel from 2004 to 2008. Previous to this she worked at StarHub Singapore and in PT. Motorola Indonesia. She has also won multiple awards including the Hitachi Award for the Indonesian CIO of the Year 2009, the Satya Lencana Pembangunan Medal of Development in 2011 from the President of the Republic of Indonesia, and the Amdocs Award for the global Telco CIO of the year in 2011.

Ms. Herfini received a Diplomengineuer degree (Dipl. Ing.) in Electrical Engineering specializing in Telecommunication from the Technical University of Braunschweig, Germany in 1992. Subsequently she participated in various training courses including a Financial Management Course at Prasetya Mulya University, Jakarta, and an Innovation Course at MIT, Cambridge, USA.

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Mr. Alejandro O. Caeg

Mr. Alejandro O. Caeg

Head – International & Carrier Business Division
SMART Communications, Inc

Mr. Alejandro O. Caeg is Head of International and Carrier Business Division of SMART Communications, Inc., the Philippines' leading wireless services provider. He is also the concurrent First Vice President/Head of the International and Carrier Business Group of Philippine Long Distance Telephone Company, the largest and most diversified telecommunications company in the Philippines.

His expertise include mobile services distribution, fixed broadband services, overseas telco ventures, fixed lines and international services, mobile VAS and MCommerce trade, vendor negotiations, emerging revenue generators as MVNOs and mobile broadband.

He was part of SMART as Group Head for Customer Care back in 1997 before transferring to Sales and Distribution in 2002. He has experience in sales and marketing management, C-level relationship management, product and business development for new markets, customer service interface and customer retention, project management, business operations and continuity, trade alliances, as well as business risk management.

After his previous stint with SMART, he became the Chief Commercial Strategy Officer of PT Smart Indonesia, a 100%-owned telecom subsidiary of one of Indonesia’s biggest conglomerates (the Grup Sinar Mas) that rolled out a nationwide CDMA network together with an EVDO Rev. A data implementation.

He graduated at the De La Salle University with a degree in Applied Economics and took up MBA from the same university. He is also a Management Development Program candidate of the Asian Institute
of Management, Manila.

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Mr. Supoj Mahapan

Mr. Supoj Mahapan

Director International Services Business
True Corporation Plc.

Managing Director
True International Gateway Co. Ltd.

Managing Director
True International Communications Co. Ltd.

Supoj joined True Group, Thailand’s only fully-integrated, nationwide telecommunications provider and leader in convergence, since 1998. A veteran of the telecommunications industry, he has experience in various functions which include assisting the President & CEO of True Group in leading Strategic Development and Corporate Planning teams, managing Corporate Wholesale business, Treasury operations, and overseeing the International Roaming business unit. Supoj’s current responsibilities have been expanded to cover all other international related services, including international gateway capacity, international data and voice services in both wholesale and retail markets, as well as related mobile technologies.

Before joining True Group, Supoj worked for IBM World Trade Asia Corporation in Japan, IBM Thailand Co. Ltd., and Thai Airways International PCL. He earned his Bachelor of Engineering degree from Chulalongkorn University and Master of Business Administration degree from Sasin Graduate Institute of Business Administration of Chulalongkorn University in cooperation with Kellogg School of Management, Northwestern University.

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Mr. Phan Huu Chau


Managing Director
VNPT International

Dr. Lam Quoc Cuong joined VNPT-International in 1996 and he has been serving as Managing Director. He has years of experience and expertise in international business and strong commitment and dedication for the international services of VNPT including Voice & Roaming, Satellites, Data (IPLC, IEPL, I-VPN)

Prior to currently role, Dr. Cuong was the Director of Business Department, VNPT Group, where he led the successful business of the organization in 2010-2011. Previously, he was the Deputy Managing Director of VNPT International from 2006-2011 and Director of Administration Department, from 2003-2006, Deputy Chief of Technical Department from 1996-1999.

Dr. Cuong holds a PhD in Telecoms from Moscow Technical University of Communications and Informatics (MTUCI).

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Workgroup Chairmen

Mr. Keisuke Yoshizawa

Mr. Michael Chang
Strategy WorkGroup Chairman

Head of Alliances and Partner Services

Michael was elected chairman of Conexus Strategic Workgroup in February 2017, responsible for formulation and execution of strategy for Conexus Mobile Alliance.

At StarHub, Michael is charge of alliances and partner services in the International Business department. He has 17 years of diverse experience in the telecoms sector, including product development, vendor management and business consulting. Prior to StarHub, Michael held positions at Ericsson and Nokia.

Michael holds a Bachelor of Science (Economics) from London School of Economics and a MBA from University of Hull.

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The Alliance aims to be the preferred mobile alliance group in the world, in terms of its customer base and the geographical reach, and offering the highest level of customer satisfaction in mobile services in the corporate and consumer markets.


To enhance each member's corporate value, competitive strength and profitability through joint alliance activities that will enhance the customer experience of all its customers.

Fetnet Indosat HHK Telecoms Vinaphone KT NTT Docomo Smart StarHub Truemove