![](https://smwia504.com/wp-content/uploads/2016/06/History-of-Local-504.jpg)
![](https://smwia504.com/wp-content/uploads/2016/06/History-of-Local-504.jpg)
- Sheet Metal International Association Issued a Charter to Local 504 on the 12th of June, 1957.
- Local 433 sault Ste-Marie was amalgamated with Local 504 September 5th , 1962.
- Local 504 area consists from (East) Mattawa to (West) Sault Ste-Marie. (North) Kapuskasing to (South) north of Parry Sound.