Nova Scotians have seen two major employers move to Mexico over the past 10 years. 
The Trenton Car works that started making rail cars in 1913 and employed 1100 during peak years before 2007. The operator, GreenBriar, had gradually shifted production to its plants in Mexico
so that last going off Trenton employed only 200 (to finish off the last order) Permanently closed in 2007
Moir's Chocolates (Pot of Gold brand) employed 600 until 2007 when the operator, Hershey, moved production to Mexico. They also closed a plant in Smith's Falls, ON and one in California and transferred that work to Mexico as well. Moir's was started in Halifax in 1815 as a bakery. When asked what it would take to keep the plant from moving to Mexico, company officials said the staff would have to work for $2.00/hr. 
That's what no tariff trade with Mexico has done to Nova Scotia.