TETHYS, a Turkish-incorporated critical minerals and strategic infrastructure platform with projects across Eurasia, and Hartree Metals LLC, a subsidiary of the global commodities firm Hartree Partners LP — a leading independent commodities trading and asset management company — have entered into a life-of-mine offtake and commercial prepayment arrangement to support concentrate exports from the Cataltepe polymetallic mining project in north-western Türkiye.
The agreement establishes a long-term commercial partnership between the two companies, anchored on the Cataltepe operation. Production from the mine is expected to be processed at the Kalkım flotation facility, generating zinc, lead, and copper concentrates for export to international smelting markets.
Under the arrangement, Hartree Metals has provided a commercial advance payment to support the restart of operations and ongoing production activities, and will purchase and export 100% of the zinc, lead, and copper concentrates produced for the life of the operation. Production at Cataltepe is expected to commence shortly, with monthly shipments increasing progressively as operations ramp up.
The transaction demonstrates a shared commercial understanding of the project and a mutual commitment to establishing reliable concentrate supply chains in Türkiye. For TETHYS, the agreement represents the commercial activation of its flagship Turkish operation and a significant milestone in its broader strategy to develop a multi-country portfolio of critical mineral assets across Eurasia. For Hartree Metals, it signifies a deepening of its commercial engagement with Türkiye’s expanding mining sector.
Prof. Dr Leyla Keser, Chairperson of TETHYS Gateway Trading LLC, said: “The Cataltepe offtake agreement is a landmark transaction for TETHYS and a strong endorsement of the project’s commercial potential. We are delighted to be partnering with Hartree Metals as our long-term trading partner and look forward to building on this relationship as TETHYS continues to develop its portfolio of mineral assets across the region.”
