Komori
Mitsubishi Steel Mfg. (5632) · RiskMaterialisedLatest Results (2026-11-04): "Advanced"

Production cuts and higher costs due to lower material supplies from the Muroran industrial complex

First written in FY2019-Q3. 7 of 21 entries say "Materialised", first in FY2021-Q1. Latest entry: 2026-11-04.

21entries
8years
13from disclosures
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How it moved
ProgressHeldSoftenedWorseFirst statedFY2019-Q3WorsenedFY2020 – FY2021-Q3MitigatedFY2022-Q12019: 120192020: 320202021: 220212022: 020222023: 020232024: 020242025: 120252026: 142026
Same theme, other companies
Special Steel Material Supply Constraints Caused by the Muroran Industrial Complex AccidentA theme 1 companies write about · 1 as a headwind · 0 as a tailwind

No other company in this theme has enough history to compare yet.

Full recordFilings, disclosures and news, newest first
  1. FY2026MaterialisedAnnual report

    「In the previous fiscal year, suspension of operations caused by blast furnace problems and a fire led to lower sales volumes and deteriorating productivity due to lower operating rates, significantly worsening earnings. This was the main reason the Company failed to achieve the targets of the 2023 Medium-Term Management Plan.」

    The suspension of operations, lower volumes and deteriorating productivity caused by blast furnace problems and a fire at the Muroran industrial complex actually resulted in a significant deterioration in earnings in the domestic steel products business.
  2. FY2026-H1MaterialisedAnnual report

    「The domestic business suffered a significant decline in earnings as lower volumes across the Muroran industrial complex, including contract production, and lower operating rates caused by blast furnace problems deteriorated productivity.」

    Blast furnace problems occurred at the Muroran industrial complex, resulting in a significant decline in earnings in the specialty steel products business through lower operating rates and deteriorating productivity.
  3. FY2022-Q1MitigatedAnnual report

    「The operating environment has been recovering, with demand recovering and one-time costs associated with the blast furnace repairs being eliminated.」

    The one-time costs associated with the blast furnace repairs were eliminated, and part of the repair-related burden connected with the Muroran industrial complex was reported to have been removed.
  4. FY2021-Q3MaterialisedAnnual report

    「In the domestic business, the Company posted a loss due to lower sales volumes and higher one-time costs from drawing down stockpiled inventory in connection with blast furnace repairs, as well as the burden of blast furnace repair costs from the second half.」

    The drawdown of stockpiled inventory in connection with blast furnace repairs, higher one-time costs and the burden of repair costs emerged as losses in the domestic specialty steel products business.
  5. FY2021-Q2WorsenedAnnual report

    「In the domestic business, the impact of lower sales volumes and higher one-time costs from drawing down stockpiled inventory in connection with blast furnace repairs was substantial, and the business posted a loss despite cost improvements from the stockpiling effect ahead of the blast furnace shutdown scheduled from July.」

    The suspension of operations ahead of the blast furnace repairs emerged as the blast furnace shutdown from July and higher one-time costs from drawing down stockpiled inventory, resulting in a loss in the domestic specialty steel products business.
  6. FY2021-Q1MaterialisedAnnual report

    「In the Special Steel Products segment, the domestic business recorded lower profit, primarily due to lower sales volumes and higher costs associated with blast-furnace refurbishment. Although the use of stockpiled inventory ahead of the refurbishment produced cost savings, profit still declined.」

    Blast furnace repairs related to the Muroran industrial complex emerged in actual results through higher repair costs and lower production and sales volumes.
  7. FY2020WorsenedAnnual report

    「At domestic production sites, significant production fluctuations are expected in response to a sharp decline in demand. These include plans by affiliated company 北海製鉄株式会社 to bring forward the suspension of operations for blast furnace repairs.」

    The risk of lower material supplies from the Muroran industrial complex progressed to a stage where an earlier suspension of operations for blast furnace repairs and significant production fluctuations are expected.
  8. FY2019-Q3First statedAnnual report

    「Although higher sales volumes in Japan and higher selling prices had a positive impact on earnings, JATIM recorded an operating loss while expanding sales following its conversion into a subsidiary. In addition, during the third quarter, the impact of production cuts and higher costs caused by lower material supplies from the Muroran industrial complex weighed heavily on results. Operating profit decreased by ¥111 million, or 9.1%, year on year to ¥1,112 million.」

    Lower material supplies from the Muroran industrial complex actually caused production cuts and higher costs, emerging as a factor behind the ¥111 million, or 9.1%, year-on-year decline in operating profit in the specialty steel products business.
Moved together

"Demand fluctuation risk in the automotive and construction equipment industries" moved the same way as this thread, in the same document, in 8 of its 17 moves.

866443★123456
  1. ★This thread
  2. 1Demand fluctuation risk in the automotive and construction equipment industries8×
  3. 2Strengthening the Domestic Business Base6×
  4. 3Stagnant domestic demand and intensifying global competition6×
  5. 4Expansion into New Markets for Specialty Alloy Powders and Precision Castings4×
  6. 5Risk of natural disasters, fires and other events4×
  7. 6Risk of fluctuations in the prices of raw materials such as iron ore and coal3×

★ is this thread; numbers match the list above. The number on a line is how many documents both moved the same way in; lines between the other threads count the documents they moved together in too. Threads that move together often sit closer.

When this could move next
Mitsubishi Steel Mfg.'s next results are scheduled for 2026-11-04. Read the earnings preview It last moved in the Results of 2026-11-04: "Advanced".
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