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Tosoh Nanyo Cement Plant

Cement Plant in Japan. Approximate location 34.05861, 131.76171.

Cement PlantJapanCO₂ estimate (modelled)

Tosoh Nanyo Cement Plant is a cement plant in Japan. Its listed capacity is 2,900,000 t of cement. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length. It is operated by Tosoh Corp. By capacity it ranks #6 among 22 cement plants in Japan. It emits about 1,180,850 t CO₂e a year from Climate TRACE, roughly comparable to the annual emissions of 275k passenger cars. Its CO₂ per unit of capacity is 12% above the national median for this sector.

2,900,000t of cement
1,180,850t CO₂e / yr (Climate TRACE)
#28CO₂ rank in Japan
0.41t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-32438824.

Data status

Known source data

FacilityTosoh Nanyo Cement Plant Climate TRACE
CountryJapan Climate TRACE
Coordinates34.05861, 131.76171 Climate TRACE
Sector / subsectorcement Climate TRACE
Reported capacity2,900,000 t of cement Climate TRACE
Owner / operatorTosoh Corp Climate TRACE
Modelled CO₂e1,180,850 t/yr Climate TRACE

Calculated from the dataset

Japan rank#28 of 105 · top 26.7% calculated
Global cement rank#337 of 2113 · top 15.9% calculated
Climate contextderived from coordinates calculated

Not available

Fuel typeNot available not in dataset
Thermal capacity (MW)Not available not in dataset

Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.

Similar facilities by modelled emissions

Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.

Operating power plants within 50 km

PowerAtlas operating assets, ordered by great-circle distance from published coordinates.

In context: how this facility compares

At 2,900,000 t of cement, Tosoh Nanyo Cement Plant is well above the median cement plant in Japan (1,900,000 t of cement). Subsector: cement. As cement plant, it requires high process heat (typically 800–1400°C) for its core industrial operations — heat that must be supplied by boilers, furnaces or direct combustion, and losses through uninsulated vessels and piping represent wasted fuel. Removable modular insulation can cut those losses by 80–96%, surface-cooling equipment to ≤45°C, with payback often under 2 years. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 1,180,850 t CO₂e a year looks like

This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

275kcars driven for a year
154khomes' annual energy use
20 milliontree seedlings grown 10 years

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Carbon cost, Scope 1 & decarbonization potential

At its reported 1.2M t CO₂e/yr (Scope 1), Tosoh Nanyo Cement Plant carries no domestic carbon price — and as a CBAM-covered product, its 1.2M t at the EU CBAM rate (€75/t) is €89.0M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. The fastest decarbonization lever is energy efficiency: eliminating heat loss on hot equipment (removable insulation, steam & waste-heat recovery) typically cuts 2–5% of fuel-related CO₂ — here ≈24k t–59k t/yr, worth €1.8M€4.4M, with payback up to 2 years. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).

1.2M t CO₂e / yrScope 1 emissions
€89.0M/yrCBAM exposure on EU exports
24k t–59k t/yr ≈ €1.8M€4.4MDecarbonization potential

Carbon price: EU CBAM €75/t · EU ETS €79/t, July 2, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Efficiency range: US DOE / ASTM C680 (method). Indicative carbon value, not the cash bill — free allocation applies; not compliance advice. Estimate the saving for this site →

Capacity vs largest cement plants in Japan

Mitsubishi Materials Kanda Cement Plant: 7,220,000 t of cement7.2MMitsubishi…Sumitomo Osaka Cement Kochi Cement Plant: 4,350,000 t of cement4.4MSumitomo O…Ube Industries Isa Cement Plant: 4,000,000 t of cement4.0MUbe Indust…Sumitomo Osaka Cement Ako Cement Plant: 4,000,000 t of cement4.0MSumitomo O…Taiheiyo Cement Fujiwara Cement Plant: 3,900,000 t of cement3.9MTaiheiyo C…Tosoh Nanyo Cement Plant: 2,900,000 t of cement2.9MTosoh Nany…Taiheiyo Cement Omi Cement Plant: 2,690,000 t of cement2.7MTaiheiyo C…Taiheiyo Cement Oita Cement Plant: 2,190,000 t of cement2.2MTaiheiyo C…

Listed capacity (t of cement), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by Tosoh Corp. All facilities by this operator →

Local climate

Tosoh Nanyo Cement Plant sits in a humid subtropical climate zone (Köppen Cfa), at 34.1°N in the northern hemisphere.

~18°Ctypical annual mean
~27°Ctypical warm-season
Humid subtropical: hot summers and mild winters

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

The local climate sets how fast unprotected steel, protective coatings and the insulation on hot process equipment degrade at this site. It sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
40/100environmental-severity index
21.7°Cseasonal temperature swing
75 kmdistance to coast
HighCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1348 W/m² to ambient — roughly 1.04× the loss at a 20 °C reference; removable insulation recovers about 1281 W/m² of that. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby sites

The #6 largest of 22 cement plants in Japan by listed capacity (Climate TRACE).

Nearby industrial sites

Location

Coordinates 34.05861, 131.76171. View on OpenStreetMap.

Heat loss & insulation profile

For a cement plant, the main modular-insulation targets are rotary kiln shell, preheater tower, tertiary air duct & kiln hood, clinker-cooler ducts, valves. Typical hot-surface ranges used for screening: 200–1,000 °C.

60% of cement CO2 is process calcination - NOT insulation-addressable; energy here is the fuel side only.

Indicative recoverable energy

A first-pass insulation screen suggests about 16,000 MWh/year of recoverable heat-loss reduction and about 5,500 t CO₂e/year of avoided emissions. Screening estimate scaled from installed process-heat projects and surface-temperature reduction data.

See Inzonex Modular Insulation → Run the calculator →

Screening calculation from facility class, capacity and open emissions/energy context. Engineering survey required before procurement.

Safety & the no-regret first step

Start with a thermal survey of valves, flanges, doors and bends. Removable modular insulation keeps maintenance access open while lowering exposed-surface temperature and wasted heat.

Japan: funding & obligation

Funding. Subsidies to cut upfront cost of energy-saving equipment for industry/commercial; some tied to 'specified business operator' status + S/A benchmark class. official source · verified 2026
Status: Annual call-based — confirm current SII program.

Obligation. Factories/operators with large energy use are designated 'specified business operators': must appoint energy managers, report, and file mid-to-long-term efficiency plans. (applies as a rule above the stated threshold — we do not hold this site's metered energy use). official source · verified 2026

Programme terms verified 2026-06-18; confirm the current open phase before applying. Eligibility depends on a site's energy use / headcount, which we do not hold — not a per-facility eligibility determination.

Frequently asked questions

What type of facility is Tosoh Nanyo Cement Plant?

Tosoh Nanyo Cement Plant is a cement plant in Japan. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.

What capacity is listed for Tosoh Nanyo Cement Plant?

The open dataset lists 2,900,000 t of cement of capacity for Tosoh Nanyo Cement Plant.

How much CO₂ does Tosoh Nanyo Cement Plant emit?

The page uses about 1,180,850 t CO₂e/year from the open dataset It ranks #28 among facilities in Japan by estimated CO₂.

Where is Tosoh Nanyo Cement Plant located?

Tosoh Nanyo Cement Plant is in Japan at approximately 34.05861, 131.76171.

Who operates Tosoh Nanyo Cement Plant?

The operator recorded in the open dataset is Tosoh Corp.

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