Veena Sahajwalla began exploring the potential of using waste materials, particularly end-of-life tires, in the steelmaking process. This marked the genesis of her Green Steel technology concept.

Sahajwalla's research team at UNSW conducted extensive research and development to refine the Green Steel process. This involved optimizing the use of waste materials, developing new reactor designs, and assessing the environmental benefits of the technology.

Successful pilot plant demonstrations proved the viability of Green Steel technology on a larger scale. These demonstrations showcased the potential of using waste materials to replace coal and other fossil fuels in steelmaking.

Veena Sahajwalla worked to commercialize Green Steel technology and promote its adoption by steel manufacturers around the world. This involved licensing the technology, partnering with industry, and advocating for policies that support sustainable steelmaking practices.

Sahajwalla's research continues to focus on further refining Green Steel technology, exploring the use of other waste materials, and developing new sustainable manufacturing processes.