SciDev will supply Iluka with its MaxiFlox chemistry, which will be used for the treatment of the mine site tailings to assist in maximising water recovery whilst minimising the tailings footprint.
Sales are expected to start in March.
The contract at the Cataby operation follows the ongoing engagement SciDev has had with Iluka at its Jacinth Ambrosia operation in South Australia since 2019.
"It is exceptionally pleasing to extend our relationship with Iluka to a second operating site," SciDev CEO Seán Halpin said.
"Our ability to execute and deliver services to large-scale domestic and international mining companies reflects the quality of our chemistry products and the skill set of our team.
"The continued strength of the underlying global resources sector presents a significant growth opportunity for SciDev and we remain actively engaged with a number of tier-one clients as we look to deliver future growth opportunities."
SciDev shares jumped 13.9% to 41c, the highest since April. The company has a market capitalisation of $76.8 million.