Vulcan Energy Resources (ASX:VUL) signed an agreement worth about 40 million euros with technology company Siemens for the supply of engineering, automation, telecommunications, and building technology systems for the Lionheart project in Germany, according to a Monday filing with the Australian bourse.

The project involves the construction of an integrated lithium and renewable energy project with an aim to produce 24,000 tonnes of lithium hydroxide monohydrate per year over an estimated 30-year project life, the filing said.