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News Japanese cement producers used 21.9Mt of waste in 2024 financial year

Japanese cement producers used 21.9Mt of waste in 2024 financial year

Written by Global Cement staff 21 July 2025
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Japan: Cement producers used 21.9Mt of post-consumer materials and by-products in the 2024 financial year, down by 3% year-on-year, marking the third consecutive annual decline, according to the Japan Cement Association.

Coal ash and blast furnace slag, which together make up over 50% of the total, both declined, although post-consumer plastics increased for a fourth consecutive year.

Cement production, including clinker for export, also fell by 3% to 45.7Mt. The amount of byproducts used per tonne of cement dropped from 480kg in 2023 to 478kg, but remained above 400kg for the 21st year in a row.

Last modified on 23 July 2025
Published in Global Cement News
Tagged under
  • Japan
  • Waste
  • Waste management
  • Alternative Fuels
  • Japan Cement Association
  • Coal ash
  • Slag
  • Plastic
  • Production
  • Clinker
  • data
  • statistics
  • Asia
  • GCW719
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