08:30 AM EST, 01/30/2025 (MT Newswires) -- Rock Tech Lithium ( RCKTF ) said earlier Thursday that it signed a memorandum of understanding with German cement manufacturer SCHWENK to use lithium by-products from Rock Tech's Guben converter for use in Schwenk's cement manufacturing.

Rock Tech said the partnership offers a new revenue stream and reduces costs linked to leach residue transportation and disposal.

Upon the successful ramp-up of Rock Techs' Guben Converter, Schwenk plans to invest in facilities for drying, grinding and storing leach residues from lithium production.

"This partnership is a testament to our commitment to sustainability and formation of a circular economy," said Kerstin Wedemann, RCK's chief operations and legal officer. "By transforming waste into value, we enhance our profitability and support the cement industry's decarbonization efforts."

By 2029, Rock Tech said Schwenk aims to use up to 200,000 tonnes of by-products annually, helping Rock Tech achieve its zero-waste goals.

"The leached spodumene concentrate produced during the operation of the planned converter in Guben represents an interesting and regionally available source of secondary raw materials," said Johann Trenkwalder, member of Schwenk's management board.

RCK edged down $0.01 to $1.11 yesterday.