Tags Vietnamese steel export DoC lists condition for exemption from steel tax Friday, May 25, 2018 The US Department of Commerce (DoC) has notified the exemption of measures if Vietnamese steel export enterprises prove that the exported products are made from material not using Chinese-origin substrate. US’ DoC levies import tax on Vietnamese steel Tuesday, May 22, 2018 The US Department of Commerce (DoC) has decided to levy import tax on steel produced in Viet Nam using Chinese-origin substrate.