Meet our
team

With decades of collective experience in aeromedicine, emergency care, and crisis coordination, EMA Global’s leadership team supports organisations across Asia and worldwide. Our multidisciplinary team enables coordinated emergency response team activation for medical incidents, workplace emergencies, and international crises.

Dr. Winston Jong

Group CEO and Group Medical Director

Dr. Jong is the Group CEO and Group Medical Director of EMA Global, which he founded in 1991. Dr. Jong has established himself in the fields of clinical anaesthesia and intensive care medicine. He is also an expert in aero-medical medicine and the management of medical assistance. Dr. Jong is a leading sub specialist in aeromedical medicine. Dr Jong also oversees the medical care provided for all transports and is involved with the aeromedical training and quality assurance of EMA Global’s medical escorts.

Dexter Tan

Deputy CEO

Dexter is the Deputy CEO of EMA Global. With over 15 years of experience in leadership roles, he oversees EMA Global's group strategy and business units across operations, network, quality control to ensure sustainable business growth. He is also involved in special projects that spans product and services development and deployment of AI solutions.

Jaslyn Siow

Chief of Medical Operations

Jaslyn is a qualified nurse with a degree from the University of Sydney. She has been a nurse for more than 20 years and has valuable experience across many areas of practice, including ward care, ophthalmology, operating theatre and intensive care. Jaslyn marries her nursing expertise with her administrative acumen by assembling a team of medical specialists and nurses, and arranging vital ambulance and flight transport, to rescue and repatriate persons in medical need. Often, this task has to be organised within a few hours and Jaslyn has always delivered the team for the job and the patient safely to the destination.

Dr Rowena Kwan

Group Director, Aviation

Dr Rowena Kwan has been a leader in general aviation since 2005, specializing in air-ambulance and executive charters. Her background includes having owned aircrafts which provides her with a deep, practical understanding of aircraft management, maintenance, and the regulatory complexities of the industry. As Group Aviation Director, Rowena leverages this to ensure EMA Global’s flight operations are managed with efficiency and safety. Her leadership is backed by her doctoral research in healthcare management, allowing her to seamlessly align clinical excellence with mission-critical flight logistics across the region.

Reine Jong

Group Chief of Legal and People

Reine is a Durham University graduate and was admitted as an Advocate and Solicitor of the Supreme Court of Singapore in 2012. Following a career in Corporate Finance and Capital Markets she now leads both the legal and human capital functions for EMA Global’s regional offices. Reine manages the group’s legal affairs and regional compliance. Her HR portfolio is equally comprehensive, covering talent acquisition, total rewards strategy, and human capital governance. Her dual oversight ensures that EMA Global’s people programs are legally sound, data-driven and structured to support a high-performing regional workforce.

Nicholas Chia

Group Chief Financial Officer

Nicholas is the Group Chief Financial Officer of EMA Global. He oversees EMA Global's regional finance, business integration and process improvements, focused on improving productivity. He is also involved in the groups overall corporate strategy and new business opportunities that support the long term growth of the company. Nicholas graduated with an Mathematics degree from Queen Mary, University of London and completed his Program for Leadership Development at Harvard Business School in 2020. Prior to joining the medical assistance industry, Nicholas was a investment banker for 16 years in Hong Kong and Singapore.

Beda Biala Jr

Group Chief Operations Officer

Tony Ridley

Group Chief Security & Risk Advisor

Tony Ridley has three decades of enterprise risk governance and travel security expertise. As Chief Security & Risk Advisor at EMA Global, he leads the development of scalable travel risk intelligence and security assistance frameworks across the Asia-Pacific region. With operational experience spanning government critical infrastructure protection, crisis response across 40+ countries, and board-level risk advisory, Tony combines academic rigour with practical operational insight. His work has produced over 136 published research contributions on transnational security and travel risk.

Jimmy Goh

Group Chief Information Security Officer

Jimmy Goh is a former Commanding Officer in the Republic of Singapore Navy. Across a 26 year career, he served in the capacity of commanding officer of ships, squadrons and flotilla and commander of Coastal Command. For the last 25 years, Jimmy has worked in the cyber security industry and leads the Information and Data Security division in EMA Global, covering insider threats, risk management, incidence response, and governance.

Frank Doreleijers

Head of Global Sales

Frank has 25 years of experience driving revenue growth, building high-performing commercial teams, and delivering transformative results across healthcare, assistance, and related industries in Asia. He currently leads EMA Global's sales transformation, expanding insurance and corporate client portfolios.

Loh Kim Loon

Head of Assistance

Mr Loh is the current Head of Assistance, a highly experienced crisis operations professional with over 25 years of operational experience in the international medical and security assistance industry. He has extensive hands-on expertise in managing complex medical evacuations, security evacuations, and large-scale crisis responses across multiple regions worldwide. His career spans frontline operations, regional oversight, and global oordination, with a strong track record in handling high-risk, time-critical cases involving multiple stakeholders, including governments, healthcare providers, insurers, and corporate clients. Mr Loh has played key roles in several major international crisis responses, winning multiple industry awards.

Adulsak (Pom) Esichaikul

Head of Thailand

Pom has been in the assistance industry for the last 35 years. He currently leads EMA Global's Thailand operations, overseeing its growth and business goals.

Taro Matsumoto

Head of Japan

Taro-san has a career in the assistance industry spanning two decades. He has lead teams across travel and medical assistance, claims, and fraud investigations. He is well-versed in Japanese insurance and its complex healthcare system and currently spearheading EMA Global's Japan operations.

Dr Cherie Huang

Head of Artificial Intelligence

Dr Huang is an accomplished commercial leader with over 20 years of experience across the Asia Pacific. Her experience includes a GenAI startup, senior leadership roles at Ant International and advisory positions in fintech and academia, supported by a Doctorate from Hong Kong PolyU and an MBA from Leiden University. She drives EMA Global's AI strategy and digital transformation by leading data science and engineering teams to deliver solutions for both internal operations and client services.

Nathanond (Nop) Bavornthanapipat

Head of Training, Learning & Development

Mark Ryan

Associate Operations Director (Malaysia)

Joy Mariano

Provider & Network Manager

Jay Bajas

Director of Operations (Philippines)

Kent Tan

Medical Transport Manager

Kent Tan is a Medical Transportation Manager with over five years of experience in healthcare logistics, patient transportation, and medical assistance operations. He specializes in coordinating complex medical transfers, air ambulance missions, patient repatriations, and cross-border healthcare arrangements, working closely with hospitals, healthcare providers, insurers, and transportation partners. His expertise includes case management, operational planning, stakeholder coordination, and healthcare logistics. Committed to delivering safe, efficient, and patient-centered solutions, Kent combines operational excellence with a strong focus on quality, compliance, and compassionate care to ensure the best possible outcomes for patients and clients.

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