General Motors responded to Unifor's call for a boycott on the purchase of Mexican made vehicles in an official release.
Friday's call for a boycott will cause "collateral damage" for 60 Ontario-based auto-parts companies supporting Mexican production, according to the company's website.
The move was announced to protest the closure of the Oshawa Assembly Plant — but the company says Unifor members in St. Catherines and Ingersoll make transmissions and body panels that go into Mexican made vehicles sold in Canada.
According to the release, GM is one of 10-companies to import vehicles from Mexico; five of which also have Canadian facilities.
Unifor National President Jerry Dias referenced an $11-billion bailout Friday; GM claims it has reinvested more than $100-billion into Canada since 2009.
The company reiterated its stance that the Oshawa's facility suffers from "persistent low utilization" and doesn't have a, "viable business case for production."