Tags tool chests and cabinets US delays antidumping investigation on VN’s tool chests Tuesday, Aug 22, 2017 The US Department of Commerce (DOC) on Monday announced the postponement of preliminary determinations of antidumping duty investigations on tool chests and cabinets imported from Viet Nam and China from October 1, 2016 through March 31, 2017. USDOC investigates tool chests imports from Viet Nam Wednesday, May 03, 2017 The US Department of Commerce has begun investigating the possibility of dumping of imports of tool chests and cabinets from Viet Nam and China.