STT Enviro Corp
On this page, we’ll touch on the history of our time as STT Enviro Corp, the solutions we provided, and the dedication to excellence from that time that our teams still maintain today.

Pioneering Environmental Solutions
Before we became Carmeuse Systems in 2024, our company was previously known by several names as it evolved and grew over the years. One of which was STT Enviro Corp (STT).
Our Beginnings as STT Enviro Corp
Since the 1970s, our company has been developing high-quality engineered solutions for clients in a wide variety of industries. Over the next 35 years, we acquired several additional companies and greatly expanded our scope of capabilities for our clients. In February 2013, we rebranded and combined two of those entities, STT Semcan and STT Stanco, into STT Enviro Corp.
STT Enviro Corp Capabilities and Global Reach
At the time of the rebrand, STT Enviro Corp. was publicly traded and listed on the TSX Venture Exchange (TSXV) in Canada. The company was headquartered in Milton, Canada.
STT Enviro Corp operated through two divisions (Systems & Solutions and Tanks & Industrial), and focused on engineering design, commissioning, and aftermarket support for our equipment solutions around the globe. The Systems & Solutions division managed bulk chemical storage and handling systems, slaking systems, and other solutions for environmental and industrial processes. The Tanks & Industrial division developed custom bolted tanks, silos, and trans-load systems for a wide range of markets, including mining, oil and gas, power, chemical manufacturing, and other sectors.
The Acquisition of STT Enviro Corp
STT Enviro Corp. was acquired by the global lime and limestone provider, Carmeuse, in June 2017, as a wholly owned subsidiary. The company was initially branded as Storage & Transfer Technologies (STT), and then fully integrated into the Carmeuse family when it was renamed Carmeuse Systems in 2024.
Continuing to Support our STT Enviro Corp Customers
STT Enviro Corp has a legacy of quality engineering, effective solutions and world-wide growth. From its inception as STT Enviro Corp to its present-day operation as Carmeuse Systems, the company has consistently delivered high-quality solutions and services with a focus on safety, efficiency, and reliability.
Today, Carmeuse Systems continues to support many of our STT Enviro Corp systems. If you have an STT Enviro Corp. system or other STT equipment and are need of an upgrade, replacement, parts or other support, please contact our team.