Komori
Kumagai Gumi (1861) · InitiativeAchievedLatest General Meetings of Shareholders (2026-05-27): "Cited as achieved"

Environmentally friendly λ-WOOD enabling disassembly and separation

First written in FY2022. 2 of 5 entries say "Advanced", first in FY2023. Latest entry: 2026-05-27.

5entries
5years
1from disclosures
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How it moved
ProgressHeldSoftenedWorseFirst statedFY2022AdvancedFY2023 – FY20252022: 120222023: 120232024: 120242025: 120252026: 12026
Same theme, other companies
Environmentally friendly λ-WOOD enabling disassembly and separationA theme 1 companies write about · 0 as a headwind · 1 as a tailwind

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

Full recordFilings, disclosures and news, newest first
  1. 2026-05-27Cited as achievedGeneral Meetings of Shareholders

    「By introducing the Company’s new technologies, including the “Environmentally Considerate λ-WOOD II 1.5-Hour Fire-Resistant Beam,” “Dress Wood,” and “CLT 1- and 2-Hour Fire-Resistant Floors,” the project will realize a timber-and-steel hybrid office building with high fire-resistance performance.」

    Cites the environmentally considerate λ-WOOD II technology as having been introduced in an actual completed construction project.
  2. FY2025AchievedAnnual report

    「木材と被覆材の分別廃棄を可能とした木質耐火部材の、環境配慮型λ-WOODⅡ®(ラムダウッド・ツー)について、柱・梁・床・壁の1~3時間の耐火構造の国土交通大臣認定を取得した。」

    環境配慮型λ-WOODⅡについて、柱・梁・床・壁の主要構造部で1~3時間耐火の大臣認定を取得し、耐火要件上15階以上の全ての耐火建築物の主要構造部に木造を適用可能な状態に到達した。
  3. FY2024AdvancedAnnual report

    「今回の「環境配慮型λ-WOODⅡ®」についても、2022度に認定を取得した柱・梁1・2時間に加えて、柱・梁の3時間、床・壁の1・2時間の耐火大臣認定取得を予定しており、これにより、全ての耐火建築物に木造が適用可能となる。」

    環境配慮型λ-WOODⅡについて、建築基準法改正に対応した梁の90分耐火大臣認定を取得し、残る主要構造部の認定取得を予定する段階へ進んだ。
  4. FY2023AdvancedAnnual report

    「「環境配慮型λ-WOODⅡ」は従来のλ-WOODと比較した場合、…被覆材を積層する際に、長い留付材を使用することで接着剤が不使用となり、木材と被覆材の分別廃棄とリサイクル促進による環境への配慮。」

    環境配慮型λ-WOODⅡについて、柱・梁の1~2時間耐火大臣認定を取得し、接着剤を使わない分別・リサイクル可能な仕様、施工性向上、コストダウンを実現した。地上13階建てオフィスへの適用を予定している。
  5. FY2022First statedAnnual report

    「The Company developed environmentally friendly λ-WOOD, which enables separation of the main structural components when dismantling timber buildings.」

    The fire-resistant component uses a specification with no adhesive between the timber and gypsum board, enabling separation during dismantling and reuse of the timber. It also features a slimmer fire-resistant covering and lower costs, and the Company planned practical tests and ministerial certification.
Moved together

"Securing and developing construction engineers and promoting diversity" moved the same way as this thread, in the same document, in 3 of its 5 moves.

333333★123456
  1. ★This thread
  2. 1Securing and developing construction engineers and promoting diversity3×
  3. 2Advancing the transfer of construction know-how and operational support through DX3×
  4. 3Accelerated Bridge Deck Renewal Using the Kotter Deck Method3×
  5. 4Strengthening overseas operations, centered on Taiwan3×
  6. 5Creating new revenue streams outside construction contracting and making equity investments3×
  7. 6Collaboration and creation of synergies through the capital and business alliance with Sumitomo Forestry Co.,Ltd.3×

★ 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.

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No upcoming earnings preview for Kumagai Gumi yet. It last moved in the General Meetings of Shareholders of 2026-05-27: "Cited as achieved".
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