Ng Chet Chiang started as an Inland Revenue officer with the Inland Revenue Department Malaysia in Johor Bahru. After leaving the governmental agency, he joined the private sector as a tax manager for the leading tax consulting firm SGV-Taxation Services Sdn Bhd, which was part of then Kasim Chan Group in 1980.

In 1982, he set up his own tax consultancy firm. He was a Fellow Member of Chartered Institute of Taxation Malaysia (FCTIM) and practiced under the tax licence granted under the Income Tax Act, 1967. He also obtained a corporate secretary licence from the SSM in the 1990s and was a corporate secretary and consultant for more than 25 years.

His tax consultancy and corporate secretarial firms were later passed down to his daughter, a qualified accountant, when in 2009 he decided to join his partners in managing the first locally set-up courier business — City-Link Group in Kuala Lumpur. In 2010, he sold all of his stakes in City-Link Group to his partners and co-founded, together with his son, a cross-border logistics company focusing on e-commerce.

He was also the national council member of the Association of Chinese Chambers of Commerce & Industry Malaysia (ACCCIM) for almost 35 years. During his 30 years of being a tax and corporate consultant, he was invited to become an independent and non-executive director of Apollo Food Holing Co. He left the role in 2018 after 22 years.

He was also a chairman of the Audit, Remuneration and other committees. Currently, he is a council member of the Klang Chinese Chamber of Commerce & Industries (KCCCI). He was invited to become a council member as well for the Selangor state government’s Information Technology and E-commerce Council (SITEC) for 2017 to 2021.