Our History


Five years of research and development to find

greener solutions for the clean-up and re-use of carbonaceous, mineral and agricultural wastes.



A prototype formula and process unit was developed in Northern Ireland. The process plant was assembled ready for relocation to the USA to commence as a pilot unit for testing and eventual commercialisation.



The plant was shipped and assembled at Blaze Mines West Virginia site and was successful in being able to meet the initial production capacity target of 100t/hr, generating pellets from waste coal fines.

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We begin work on the new environmentally neutral Silform Version 2 Formula and a low carbon footprint Process, and began to establish our test site in Dromore, Northern Ireland.

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A new organic polymer-based environmentally friendly formula was developed. This environmentally neutral formula produces no additional SO2, NOx, Ash or CO2.


We file two new patents on formula and process, and rebrand the company from Silform to Changeover Technologies to reflect our new products and technology, targeted at assisting companies in the reuse of their waste and the changeover to greener more circularly-efficient reuse technologies.

Having resolved one of the most difficult challenges, the pelletizing of wet carbonaceous slurries, we continue to draw on our wealth of pelletising knowledge, amassed from years of intensive R&D, to produce more green solutions for the handling of environmentally damaging wastes.

We take in another £2m of investment to support our continued R&D and development of a pilot unit. We move into new laboratory premises at the renovated Old Gasworks, Belfast, NI, and open a 3-acre test site in Ballygawley, Co. Tyrone.


At Ballygawley test site, we successfully complete our 5ton/hr Pilot unit and move to scaling up to a commercial 30-60ton/hr unit to launch it in 2021.

In our R&D pipeline we move forward with new green solutions to cleaning up and reusing into the circular economy fossil ashes and agricultural wastes.


We appoint our North American Representative and begin seeking technology partners and future investment to expand our R&D activities and launch our commercial activities in North America.

July 2020, we take in another £1.2m of investment during a time of Covid-19 shutdowns, allowing us to continue onwards to achieve our value milestones.

       The Future


Onwards to Providing Solutions to Greener Alternatives in Handling Environmentally Damaging Wastes.

Committed to helping waste producers to journey to net zero and onwards to zero CO2