The following is available on the Canada Border Services Agency website.
Copper Pipe Fittings – Notice of Initiation of Investigations
The Canada Border Services Agency (CBSA) initiated investigations on October 27, 2017, under the Special Import Measures Act respecting the alleged injurious dumping and subsidizing of certain copper pipe fittings originating in or exported from the Socialist Republic of Vietnam. The investigations follow a complaint filed by Cello Products Inc.
The subject goods are usually classified under the following Harmonized System classification numbers: