STT Corporate

STT Corporate

STT designs, procures, and provides post-installation support of dry bulk chemical processing systems and bulk material storage and handling systems that best fit your needs. We design systems tailored to site specifications across a variety of industries. We have systems installed all around the globe, and are there to support our clients throughout the life of the plant. Whether your need is for a new system, maintaining or upgrading an existing system, parts, or training, count on STT’s experts to exceed your expectations. We regularly partner with engineering firms to assist with design expertise into a larger integrated system, and with end-users to ensure they operate their system at optimum efficiency. This is what makes STT standout from the others.

Company details

8485 Parkhill Drive , Milton , ON L9T 5E9 Canada
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Business Type:
Industry Type:
Water Storage
Market Focus:
Globally (various continents)

With over 40 years of experience, we know how to solve your bulk material transfer and storage needs. Whether you have design and installation requirements, or need parts and service for your existing system, we listen to you and provide the right solution to achieve your goals.

Who We Are

With over 40 years of experience, we understand your application and plant requirements are unique. STT designs, procures, and provides post-installation support of dry bulk chemical processing systems and bulk material storage and handling systems that best fit your needs. We design systems tailored to site specifications across a variety of industries.


The company began operations in 1970 as Semco Systems Limited, headquartered in Mississauga, Ontario.  Semco’s business was the design and installation of pneumatic conveying systems and equipment, principally for the food and mineral processing industries.   Operations were focused on North America markets, with US business handled by wholly owned subsidiary Transfer Bulk Systems Corp.


The company became a public company in 2000 when parent company Semco Technologies Inc. began trading on the TSX Venture Exchange.  The parent company’s name was changed to “Semcan Inc.” on February 5, 2007.


In July 2007, the company acquired the business of Stanco Projects Ltd.  Founded in 1978, Stanco operated from an office in Richmond, BC, and worked on projects worldwide.  Stanco’s focus was the design, engineering and integrating of high-quality chemical handling systems for a wide variety of industrial, municipal and commercial clients.  These systems include bulk material handling equipment, particularly in respect of water and wastewater treatment chemicals, municipal water storage tanks, and aluminium geodesic dome structures. 


In November 2009, the company acquired the assets of the ZMI Portec Division of The Conveyor Company, an Iowa corporation. This acquisition was important as it allowed the company to add the industry- standard ZMI Portec line of lime slaking equipment to its product portfolio.   After the acquisition, the company improved the design and performance of the ZMI line.


After the acquisitions of Stanco and ZMI, the company integrated the operations, and the combined business continued to operate from locations in Milton, ON and Richmond, BC.  On January 1, 2010, the parent company amalgamated with wholly owned subsidiaries Stanco Projects Limited and ZMI Portec Inc., and the amalgamated company continued operating as “Semcan Inc.”


The company’s name was changed from “Semcan Inc.” to “STT Enviro Corp.” on February 20, 2013.


On May 19, 2017, Carmeuse acquired STT Enviro Corp., and shortly after the company ceased to be a public company.  It now operates as a wholly owned subsidiary of Carmeuse.

The company’s name was changed from “STT Enviro Corp.” to “Storage & Transfer Technologies, Inc.” on June 4, 2019.

The STT Advantage

What makes STT different is our diverse experience in many applications, industries and chemicals, along with the ability to support systems from concept through to decommissioning, and everything in between. Each customer has a unique situation, and we have seen it all. Our team of Application and Engineering experts can ensure your system operates at its best. We accomplish this through initial design, installation, training, audits, parts and consultations.

Markets We Successfully Serve
  • Oil & Gas

  • Mining

  • Power

  • Municipal & Industrial Water

  • Steel

  • Pulp & Paper

  • Food & Agriculture

Chemicals We Work With
  • Lime

  • MgO

  • Soda Ash

  • Fly Ash

  • Pulverized Activated Carbon (PAC)

  • Cement

  • Trona

  • Salt

  • Alum

  • Sodium Bicarbonate

Products Offered
  • Mixing and Slaking Systems

  • Pneumatic Conveying

  • Fixed and Mobile Transloads

  • Reagent Preparation Systems

  • Liquid Storage Tanks

Services Offered
  • Performance Audits and System Optimization

  • Retrofits, Upgrades and Replacement Systems

  • Full Offering of Consumable and Spare Parts

  • Installation and Construction Services

  • Maintenance Programs

  • Onsite and Classroom Training

  • Automation and Control Enhancements

  • Financing Options

  • Warranty Packages

We Help Clients Retrofit, Service & Maintain Their Existing Plant

STT also recognizes the tough maintenance and improvement demands placed on your plant manager. Let us help you protect your investment. Our experienced technicians can help you troubleshoot issues, design and supply solutions, install and commission retrofits and offer services and parts that will help you keep everything running smoothly.

STT has the technical capability to diagnose issues across all engineering disciplines, and either recommend operational solutions or provide anything from spare parts to entire new feed trains and storage silos, which we can be retrofit into your plant. These solutions and expansions will be specified and designed specifically to fit into your existing equipment and operations.