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NOB 0.060 −29.4% MEK 0.055 +0.0% TGOL 0.100 −9.1% FCI 0.400 −7.0% SGQ 0.350 +0.0% SASK 0.980 −3.9% WGX 4.59 −1.7% GMX 1.88 +2.7% DSV 8.84 −3.1% MQM 0.170 +0.0% MNO 1.53 −1.9% VIZ 0.190 +0.0% HBM 31.85 +0.0% CNC 1.58 +0.0% ALGR 0.485 −8.5% MSG 0.200 −2.4% NOB 0.060 −29.4% MEK 0.055 +0.0% TGOL 0.100 −9.1% FCI 0.400 −7.0% SGQ 0.350 +0.0% SASK 0.980 −3.9% WGX 4.59 −1.7% GMX 1.88 +2.7% DSV 8.84 −3.1% MQM 0.170 +0.0% MNO 1.53 −1.9% VIZ 0.190 +0.0% HBM 31.85 +0.0% CNC 1.58 +0.0% ALGR 0.485 −8.5% MSG 0.200 −2.4%
Production / Operations

Rock Tech cuts Guben converter opex by 23%

By The Northwire Desk — AI Analysis Sep 17, 2025 · 14:15 RCK · 0.82 Rock Tech Lithium Inc.
RCK · Price

Executive Summary

  • Rock Tech Lithium Inc. reports a modeled 23 % reduction in operating costs for its Guben lithium hydroxide converter, lowering cost per tonne from €5,033 to €3,878.
  • The annual project OPEX is projected to fall by approximately €27.7 million, from €120.8 million to €93.1 million.
  • Savings stem primarily from lower transport & logistics costs, revised spodumene supply terms, reagent procurement reductions, fixed‑cost cuts, and leach‑residue reuse initiatives.

Key Details

  • Cost per tonne: Decreases from €5,033/ton to €3,878/ton (based on 24,000 t/yr target).
  • Annual OPEX impact: €27.7 million reduction (€120.8 M → €93.1 M).
  • Transport & logistics: Savings of €11.7 M (47 %) – revised logistics concept and more favorable Incoterms on spodumene supply cut shipping costs by €10.4 M.
  • Reagent procurement: Reduced by €2.8 M, from €25.9 M to €23.1 M (≈10.1 % of total savings).
  • Fixed costs: Decrease of €4.2 M (from €10 M to €5.8 M), representing ~15.2 % of total OPEX reduction.
  • Leach‑residue reuse: Up to €6.3 M saved via a memorandum of understanding with Schwenk Zement GmbH & Co. KG; accounts for ~22.7 % of total savings, with binding off‑take agreements pending.
  • Additional savings: Maintenance and labour refinements contribute another €2.7 M reduction.
  • Energy cost mitigation: Ongoing negotiation of a long‑term energy supply agreement with Enertrag SE to offset rising energy prices.
  • Financing implication: CEO Mirco Wojnarowicz states the lower OPEX strengthens the financing case for equity and debt partners, enhancing project viability.
  • Capex review: Parallel capex reassessment underway; updated financial model and profitability analysis to be released in coming weeks.

Notable Quotes

“This significant cost reduction is a major step forward… By reducing our modeled costs by 23 per cent, we are not only improving competitiveness but also significantly strengthening the financing case for Guben.” – Mirco Wojnarowicz, Chief Executive Officer, Rock Tech Lithium Inc.

Read the original news release →

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