[REVISION HISTORY]

OKD ČSM mine closure advances

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What changed

2026-07-26 04:54 UTC → 2026-07-30 06:09 UTC · added ~~removed~~

OKD ČSM mine closure ~~in Czechia~~ advances

In late July 2026, Czech mining firm OKD began the first phase of sealing the ČSM‑Jih ventilation shaft at the ČSM mine in Stonava, using around 45,000 m³ of certified stone slurry. The operation followed the completion of 87 explosion‑resistant dams and was reported to be ahead of schedule and under budget, supported by a CZK 3.3 billion financial reserve. ~~A few days later the~~ The company confirmed ~~the~~ continuous 24‑hour ~~fill~~ filling of the southern shaft and outlined the full closure programme: a similar fill of the northern shaft planned for September, cement‑fly‑ash work on the initial shaft in December, and final sealing of all chambers by the fourth quarter of 2028. The plan also includes demolition of surface structures, removal of back‑fill, landscape covering, installation of degassing pipelines for future methane extraction, and the winding down of a workforce that has seen over 1,500 layoffs in the past 18 months. By the end of July, OKD announced an accelerated timetable, aiming to backfill the main shaft with a cement‑ash mixture by early 2027 and complete closure of all four shafts by Q4 2028. In contrast, state enterprise Diamo, responsible for liquidating former mines in the Karviná region, proceeds on a longer schedule. Diamo has secured the closure of eleven of the eighteen shafts it inherited, three of which are already backfilled to ground level. The remaining four shafts – two at the former ČSA mine and two at Darkov – are slated for completion by the end of 2029, contingent on additional state budget allocations.

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