LOCK

Lock 3 Mineral Processing and Recycling Company was established in 1950, on a dock on the Monongahela River near Lock #3, as a small crushing and mineral recycling company. As the steel industry around Pittsburgh expanded and contracted over the decades, our company continued its steady growth providing its processing and recycling services to the local steel industry. Through word-of-mouth we have grown to provide services to an international customer base.

Primary location: Monongahela United States