Sam Tan

President & CEO

Mr. Tan is the current President of ECTW and has acted in that role since July 2014. From 2007 to 2014, he served as Managing Director at Ellipsiz Communications Pte Limited, a Singaporean company that provided services to the telecommunications industry and that was the parent company to ECTW. From July 1, 2005 to July 2, 2014, Mr. Tan also served as Vice-President, Distribution and Services Solutions of Ellipsiz Ltd., a Singapore Exchange-listed service provider serving the semiconductor and electronics industries.

Eric Chan


Chief Financial Officer

Mr. Chan is a well-seasoned assurance accounting professional with demonstrated decision-making abilities, analytical skills, and problem solving skills. He collaborates effectively with business managers to resolve variances, refine forecasts and identify opportunities for improvement within and outside the operations.

Calvin Hsieh


Calvin Hsieh  has over 20 years of experience in the communications and manufacturing industry working on company strategy, team leadership, regional operations and management.

Calvin has rich experience in managing telecommunications business and networks for multi-national global companies and China business. He has extensive experience in new business development, business planning, project management, and network operation management. Before joining Ellipsiz Communications, Calvin was a Plant Director in Wistron Corporations China, responsible for plant operations management, product management and program management. Prior to Wistron, Calvin was a Senior Project Manager for the telecommunication business accounts in Agilent Technologies since 2000. Calvin began his career in KG Telcom since 1997.

Calvin holds a Bachelor’s Degree in Electrical Engineering from Tatung Institute of Technology