Calix Limited executed Heads of Agreement covering the development of a lime project for lime production, with CO 2 capture and multi-fuel options, with Adbri Limited. The production of lime currently emits roughly 1 tonne of CO 2 per 1 tonne of lime produced. Lime is used extensively in producing steel, aluminium, rare earths, gold and many other minerals and is thus a significant contributor to those important industries' carbon footprints.

With the EU announcing the intention to erect trade barriers on the basis of carbon, and with other economies likely to follow, it is vital Australian industry start to adapt to producing lower carbon footprint products to maintain export viable industries. The Heads of Agreement is binding on the parties' with respect to confidentiality, but is otherwise non-binding, and outlines the parties' intent to progressing a feasibility study covering site selection, raw materials and proof of marketable product, and basis of design covering CO 2 capture from lime production, and multi-fuel /energy options, targeting early 2022 completion. Progression beyond this first milestone, if agreed (including commercial terms for IP licensing), would see; front-end engineering, design and construction targeting completion within another 18 months, and demonstration over a further two years on multiple fuel /energy options including natural gas, hydrogen, and renewable electricity, with load switching.

At the conclusion of the study, the plant would either be transferred under a BOOT commercial arrangement, or dismantled and removed if it remains a Calix-owned asset.