Redivium (ASX:RIL) signed a definitive marketing and offtake agreement with WMC Energy for the global marketing and offtake of black mass and related concentrates to be produced at the company's battery recycling facility, currently under development in the UK, according to a Monday Australian bourse filing.

The agreement includes minimum annual tonnage commitments with take-or-pay provisions and exclusivity over black mass sales, subject to conditions, with support in marketing, compliance, and export logistics.

The agreement involves a fee structure including an annual fee and a scalable commission based on volume sold and a "first look and last refusal" right for future similar projects in Europe, the filing said.