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Introducing Our Sustainability-Focused Leadership Team

United by a shared vision, each member brings a wealth of experience, creativity, and acumen to our table, which has been instrumental in shaping our past, driving our present, and architecting our future.

A group of SK tes leadership
SK tes team members

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Chief Executive Officer

Terence Ng

Terence Ng is the Founder and Chief Executive Officer of SK tes, bringing over 20 years of experience in the environmental sector. Before establishing SK tes in 2005, Terence served as the Director of Engineered Products & Services Pte Ltd, Engineered Products & Services Sdn Bhd, and Ditron Engineering Sdn Bhd. He currently serves on the boards of several private companies around the world, further demonstrating his expertise and leadership in the industry.

Terence’s extensive background in the environmental sector has helped shape SK tes’ mission and commitment to sustainability and ethical business practices.

TES _ Eric Ingebretsen (white background)
Chief Commercial Officer

Eric Ingebretsen

Eric Ingebretsen is the Chief Commercial Officer at SK tes, with responsibility for the company's global sales and marketing efforts. He's passionate about harnessing the power of storytelling to align teams and achieve the company's growth targets.

Before joining SK tes, Eric held leadership positions in marketing and business development at several companies, including SkyTel, Eaton Aerospace, Arrow Electronics and C Spire. His experience in sales and marketing has given him a deep understanding of how to create and implement effective strategies that drive business growth. With his expertise, Eric is well-equipped to lead SK tes' commercial efforts and help the company achieve its goals while maintaining its commitment to sustainability and ethical business practices.

Jae Sang Lee
Chief Financial Officer

Jae Sang Lee

Jae Sang is responsible for providing strategic leadership in finance, asset and capital management, risk management, governance, as well as stakeholder and investor relations

His passion and extensive experience in digital transformation has driven many businesses through continuous improvement and growth. Before joining SK tes, Jay served as vice president, head of global business for SK magic and SK networks, following his role as chief financial officer for SK Securities. He earned his Ph.D. from Emory University.

TES _ Thomas Holberg
Chief Operating Officer

Thomas Holberg

Thomas Holberg is the Chief Operating Officer at SK tes, responsible for implementing the strategic direction of the business and supporting the delivery of high quality services to our clients. 

With over 25 years of experience in the e-waste and ITAD industry, Thomas joined SK tes following the acquisition of Dataserv Group in 2016, where he was the Group Chief Operating Officer and co-shareholder after a Management Buyout in 2006.

Prior to joining Dataserv, Thomas worked in various leadership roles for major waste management companies in Germany. His extensive experience in the industry and knowledge of ITAD and battery operations make him a valuable addition to SK tes' leadership team. 

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Chief Strategy Officer

John Oh

John Jonghun Oh is the Chief Strategy Officer at SK tes, with responsibility for driving organizational growth and success through innovative strategic planning, business development and effective execution. He is passionate to drive transformative initiatives that shape a future of sustainable growth and unparalleled success of SK tes. 

Prior to his position at SK tes, John served as Vice President, Head of Waste lab for SK Ecoplant, following his role as Director of Korean Ministry of Environment, specialized in circular economy, integrated water resources management and ESG management. John Jonghun Oh earned his masters degree from Copenhagen University.

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Chief Information Officer

Steve Kang

Steve Kang is the Chief Information Officer at SK tes and is responsible for the company's information technology, cybersecurity, and business systems. He is working to plan and execute IT strategies that align with the company's strategy and customer needs.

Steve has 24 years experience in the IT industry, including as an Oracle and SAP ERP consultant, IT systems manager for an automotive manufacturer, IT strategy leadership and building integrated systems for 200+ overseas subsidiaries and operations at SK ecoplant.

With a master's degree in IT from KAIST University and a US Certified Public Accountant, he brings business process expertise in manufacturing and accounting, experience building various integrated systems, and a passion for change to modernize SK tes' IT systems and satisfy our clients.

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President, China Global Co-Founder

Alice Huang

Alice Huang co-founded SK tes in 2005 and serves as the President of China, overseeing strategic planning, operational management, and business development in the region.

Alice is a driver in the formulation of environmental policies, deeply engages with the local market, and strategically positions the company for growth based on her deep experience and vision for the region.


Our experience and global capabilities deliver bottom line and environmental benefits.

"SK tes was able to manage all of the reverse logistics for a multinational client, including the collection, testing, data sanitisation, disposition and value recovery of 90,000 assets; all within a 12-month period." Technological Transformation, an SK tes case study

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Let's work together to create a more sustainable future!