Inter-Ontario (formerly Superior Slag) is uniquely located at the hub of the Great Lakes in Sault Ste. Marie Ontario on the border with our sister city Sault Ste. Marie Michigan. The company is owned by brothers Richard and Michael Prpich Jr. It was founded by the late Mike Prpich Sr. in 1964.

Website

https://inter-ontario.com/

Address

114 Allen's Side Road
Sault Ste. Marie, ON
P6C 5P5

Phone

705-256-5737

Email

[email protected]


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