Environmental Data 2022

The performance indicators such as Scope 1, Scope 2, and Scope 3 Category 2 and Category 3 of environmental data are assured by a third party to improve reliability.

Overview of Environmental Load (2021)

Measures against Climate Change

Greenhouse gas (CO2) emissions trend by scope

<Scope1 and 2>(Unit: t-CO2)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Santen Group(*1)33,37134,16034,76734,02530,012-11.8
Scope2 (Market-based)--19,47119,16515,192-20.7
Scope2 (Location- based)16,56017,14220,18719,56618,525-5.3
CO2 emissions per unit of revenue(*2) [t-CO2/billion yen]148146144136113-16.9

With the setting of the 2030 target, the boundary and CO2 conversion factors have been revised to the SBT standard and retroactively revised from FY2019 onward.

  1. Total value of Scope 1 + Scope 2 (Market-based) from FY2019.
  2. From FY2019 onward, CO2 emissions per unit of revenue is calculated as the total of Scope 1 + Scope 2 (Market-based).
(Unit: t-CO2)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Shimoshinjo Office244208182150149-0.5
Scope2 (Market-based)--182150149-0.5
Scope2 (Location- based)--251210184-12.3
Noto Plant10,98511,07214,76414,91911,278-24.4
Scope2 (Market-based)--9,0218,9605,834-34.9
Scope2 (Location- based)--7,9087,5667,087-6.3
Shiga Product Supply Center6,8026,8606,3866,2975,775-8.3
Scope2 (Market-based)--2,9982,8182,355-16.4
Scope2 (Location- based)--4,1463,9443,771-4.4
Nara Research and Development Center4,1514,1124,2164,0264,0701.1
Scope2 (Market-based)--1,5921,5271,398-8.5
Scope2 (Location- based)--2,2032,1372,027-5.1
Branch and Sales offices and others2,6852,5522,6131,9482,1319.4
Scope2 (Market-based)--585507455-10.3
Scope2 (Location- based)--585507455-10.3
Suzhou Plant6,8307,7476,6066,6856,609-1.1
Scope2 (Market-based)--5,0935,2025,000-3.9
Scope2 (Location- based)--5,0935,2025,000-3.9

With the setting of the 2030 target, the boundary and CO2 conversion factors have been revised to the SBT standard and retroactively revised from FY2019 onward.
In addition, data for Scope 1 and 2 are also listed from FY2019.

<Scope3>(Unit: t-CO2)
CategoryFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
1: Purchased goods and services137,102142,215147,531160,113165,5693.4
2: Capital goods11,27515,48016,48011,71249,077319.0
3: Fuel and energy related activities not included in Scope1 and Scope21,0981,0992,2112,1892,119-3.2
4: Transportation and distribution (Upstream)708630763565517-8.5
5: Waste generated in operation410440489446316-29.1
6: Business travel2,8942,7632,04133960979.5
7: Employee commuting1,4441,6331,4851,247830-33.4
12: End-of-life treatment of sold products2252232072082205.6
CO2 emissions per unit of revenue [t-CO2/billion yen]9039339389501,14920.9
  • Categories 8, 10, 11, 13-15, which are not applicable to our business activities, and Category 9, which is difficult to calculate at this time, are excluded from the list.

Greenhouse gas (CO2) emissions reporting boundary

  • Scopes 1 and 2: All of the facilities and sales offices in Japan, and major production facility in other countries (Suzhou Plant in China)
  • Scope 3 Category 2: The consolidated companies of the Santen Group
  • Scope 3 Category 3: All of the facilities and sales offices of the Santen Group in Japan

Greenhouse gas (CO2) emissions calculation standards

Scope1CO2 emissions associated with fuel use
<Calculation method>
Calculated based on fuel consumption x heating value per unit x fuel CO2 emission factor
<Emission factor>
Emission factor based on "GHG Emissions Accounting, Reporting, and Disclosure System" (Ministry of the Environment)
Scope2CO2 emissions from the purchase of electricity and heat
<Calculation method>
Calculated based on electricity consumption x electricity CO2 emission factor + heat usage x heat CO2 emission factor.
<Emission factor>
(Japan) Electricity & Heat: Emission factor based on "GHG Emissions Accounting, Reporting, and Disclosure System" (Ministry of the Environment)
(China) Electricity: Emission factor of "2022 Corporate Greenhouse Gas Emission Notification Management Relations Priority Work Notification" (China Environmental Environment Department)
Scope3CO2 emissions through the supply chain
<Calculation method>
Calculated by the method of receiving emission volumes from suppliers. Or, calculated by multiplying the amount of activity in each category collected by the company by the emissions intensity based on the "Emissions intensity database for calculating greenhouse gas emissions of organizations through the supply chain (ver. 3.2)" (Ministry of the Environment, Ministry of Economy, Trade and Industry)
<Emission factor>
  • Category 1: Emissions associated with the purchase of raw materials / materials
    [5] Input-output table-based emission intensity
  • Category 2: Emissions associated with the acquisition of property, plant and equipment
    [6] Emission intensity per price of capital goods <Secretariat> 06-0260, Emission intensity of pharmaceutical products
  • Category 3: Emissions associated with the procurement of fuel required to generate electricity for purchased electricity
    [7] Electricity emission intensity of "Emission intensity per electricity / heat consumption"
  • Category 4: Obtain the result calculated by the fuel consumption method or the improved ton-kilo method from the transportation distance from our factory and distribution center to the delivery destination (pharmaceutical wholesale) from the contractor.
  • Category 5: Emissions associated with the disposal of discharged industrial waste
    [8] Emission intensity by waste type / treatment method, Emission intensity by waste type <Secretariat>
  • Category 6: Emissions associated with employee business trips, etc.
    [11] Emissions per unit of transportation expenses <Secretariat>, and [12] Emissions per number of nights <Secretariat>, Emission intensity
  • Category 7: Emissions associated with employee commuting
    [11] Emissions per unit of transportation expenses <Secretariat>, Emissions and emissions associated with the use of gasoline for commuting by car
  • Category 12: Emissions due to obligation to re-commercialize under the Containers and Packaging Recycling Law
    [9] Emission intensity by waste type <Secretariat>, Applicable emission intensity such as waste brass and waste paper

Energy usage trend

(Unit: GJ)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Energy usage(*1,2)656,715668,462651,669610,368635,5624.1
Energy usage per unit of revenue(*1) [GJ/billion yen]2,9192,8562,6982,4452,387-2.4
  1. In order to improve data accuracy, energy usage and energy usage per unit of revenue are retroactively revised from FY2019 onward.
  2. Energy for gasoline from commercial vehicles added since FY2021.
(Unit: GJ)
Operational siteFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Shimoshinjo Office7,1226,0855,3334,6244,171-9.8
Noto Plant238,837241,750248,878250,863237,273-5.4
Shiga Product Supply Center158,305159,485153,698154,389151,794-1.7
Nara Research and Development Center96,35995,57297,86595,69698,0282.4
Branch and Sales offices and others(*)8,5223,9544,0503,09935,3801,041.8
Suzhou Plant (China)97,256111,632106,503101,698108,9167.1
Tampere Plant (Finland)50,31449,98435,342---
  • Energy for gasoline from commercial vehicles added since FY2021.

Renewable energy trend

(Unit: MWh)
TypeFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Solar energy generation(*1)1311121212-5.5
Purchased renewable energy(*2)5545811,591-6,547-
  1. Generated by solar energy equipment installed in Nara Research and Development Center. Not included in energy consumption.
  2. Purchased from energy companies and included in energy consumption.

Environmental Load Reduction

Waste reduction and recycling trend(Unit: tons)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Total waste recycled/ reused2,8142,8883,0652,9512,662-9.8
Total waste disposed2,9103,1783,2012,9852,702-9.5
Waste landfilled622541079.51445.0
Waste incinerated with energy recovery585890743772637-17.6
Waste incinerated without energy recovery000022-
Waste otherwise disposed1,9451,7992,2452,1612,074-4.0
Recycling rate96.7%90.9%95.8%98.9%98.5%-0.4ppt
Waste disposal per unit of revenue [t/billion yen]12.913.613.312.010.1-15.2
(Unit: tons)
Operational siteFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Noto PlantEmissions1,6861,7931,8651,7161,649-3.9
Recycled resources1,6861,7931,8651,7161,649-3.9
Final disposal0.
Shiga Product Supply CenterEmissions711671743837668-20.3
Recycled resources711671743837668-20.3
Final disposal0.
Nara Research and Development CenterEmissions537380546316.8
Recycled resources517278526116.7
Final disposal0.
Suzhou Plant (China)(*1)Emissions117148179248153-38.2
Recycled resources575475220118-46.3
Final disposal60941049.21346.4
Branch and Sales offices and others(*2)Emissions832319913016930.1
Recycled resources78629012616632.2
Final disposal0.2159.
  1. Due to setting the long-term target, we confirmed the treatment status of the waste disposal contractor at the Suzhou Plant and reviewed the aggregation method from FY2020.
  2. Waste emissions from Branch and Sales offices and others increased temporarily due to the disposal of residual equipment, etc. associated with the sale of the former head office and the Osaka factory in FY2018.

Hazardous Waste

We have defined as "Hazardous Wastes," according to the laws and regulations of each country, substances that fall under specially controlled industrial waste as stipulated in the "Waste Disposal and Public Cleansing Act" in Japan, and substances to be treated as dangerous waste in China. We started collecting data from FY2020.

(Unit: tons)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Japan (Specially controlled industrial waste emissions)---132056.9
Total hazardous waste recycled/ reused----20-
Hazardous waste landfilled----0-
Hazardous waste incinerated with energy recovery----20-
Hazardous waste incinerated without energy recovery----0-
Hazardous waste recycled through other methods----0-
China (hazardous waste)---15270-54.1
Total hazardous waste recycled/ reused----44-
Hazardous waste landfilled----4-
Hazardous waste incinerated with energy recovery----44-
Hazardous waste incinerated without energy recovery----22-
Hazardous waste recycled through other methods----0-
Hazardous waste disposal per unit of revenue [t/billion yen]---0.70.3-49.1

Air pollutants emission trend

<Santen Group>(Unit: tons)
SubstanceFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
SOx (sulfur oxides)(*1,2)
NOx (nitrogen oxides)(*1,2)
VOC (volatile organic compounds)(*2)36414642458.3
  1. Emissions are estimated based on results from regular examinations.
  2. The Suzhou Plant in China is excluded until FY2019.

Water pollutants emissions trend

<Santen Group>(Unit: tons)
SubstanceFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
BOD (biochemical oxygen demand)(*1,2)
COD (chemical oxygen demand)(*1,2)
  1. Emissions are estimated based on results from regular examinations.
  2. The Suzhou Plant in China is excluded until FY2019.

PCB storage

We have no PCB-containing equipment at our business sites.
In March 2017, through a nationally designated service provider, we completed the appropriate disposal of the three PCB-containing fluorescent light ballasts that had been stored at our former Osaka Plant by rendering them harmless.

 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Polychlorinated biphenyl holdings [kg]00000-

Water usage trend

<Santen Group>(Unit: thousand m3)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Water usage TotalUsage545559588542521-3.8
Water usage per unit of revenue [thousand m3/billion yen]Usage2.422.392.432.171.96-9.8
Water usage per Production quantity [m3/10,000 units]Usage--12.412.113.49.9

<Operational site>(Unit: thousand m3)
Operational siteFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Noto PlantUsage300294343332313-5.7
Shiga Product Supply CenterUsage1151079311199-10.8
Nara Research and Development CenterUsage46555244454.0
Branch and Sales offices and othersUsage4.
Suzhou Plant (China)Usage405861536216.6

<Reference>Environmental Data (Japan)

Overview of Environmental Load (2021)

  1. Gasoline input is mainly input from commercial vehicle.
  2. Emission is based on results from regular examinations.

Greenhouse gas (CO2) emissions trend by scope

(Unit: t-CO2)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Greenhouse gas (CO2) emissions trend by scope24,86724,80428,87727,74226,737-3.6
Scope2 (Market-based)--14,37813,96310,191-27.0
Scope2 (Location-based)10,40310,41415,09414,36413,525-5.8
CO2 emissions per unit of revenue [t-CO2/billion yen]145144154147123-16.5

Energy usage

(Unit: t-CO2)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Energy usage509,145506,846509,824508,670526,6473.5
Energy usage per unit of revenue[GJ/billion yen]2,9622,8762,7922,7332,7601.0

Waste reduction and recycling trend

(Unit: tons)
 FY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Recycled resources2,5262,5972,7772,7312,543-6.9
Final disposal0.4159.

PRTR substances handled

(Unit: tons)
SubstanceFY2017FY2018FY2019FY2020(1)FY2021(2)% Change (2) / (1)
Boron and its compounds1.

Prevention of environmental pollution

Measurements and results of analysis of environmental data (FY2021)
 Noto PlantShiga Product Supply CenterNara Research and Development Center
Air pollutionSoot and dust[g/Nm3]<0.0050.10.001
Water contaminationpH 5.8∼8.67.4∼7.85.0∼9.07.2∼8.25.0∼9.06.2∼8.1
Vibration levelsNoon[dB]654470<256527

Criteria values are specified according to the agreements with the municipalities where the workplaces are located.

Environmental accounting (Japan)

<⁢Environmental conservation costs>(Unit: million yen)
Business area costs51.8168.75.4149.0
 Pollution prevention0.055.23.764.7
 Global environmental conservation51.869.31.853.4
 Resource circulation0.
Upstream/downstream costs-9.9-11.5
Administration costs2.0105.22.9131.4
R&D costs----
Social activity costs-1.4-1.4
Environmental damage costs-0.2-99.1
  • Only cases that can be determined as related to the purpose of environmental conservation are included in the calculations.
  • The cost includes the depreciation amount and is accounted for in the same way as in accounting.
  • Current investment includes both the investment amount and expenses.
  • The total number is only a rough estimate because the totals are rounded off.
  • The employment cost of the environmental management department and the operation and maintenance of the environmental management system are accounted for as administration costs.
  • "-" means no cost or no activities.

<Economic effects of environmental conservation measures>(Unit: million yen)
Profits from sales of waste etc55.957.5
Cost reductions15.713.2
  • Only economic effects that can be determined with a high degree of certainty are included in the calculation.

<Environmental conservation effect>
CategoryunitFY2020FY2021Environmental burden reduction% Change (2) / (1)
EnergyTotal energy usageGJ508,670526,647-17,9773.5
Gasthousand m32,6132,663-501.9
Heavy Oilkℓ2,1922,002190-8.7
Heating and CoolingGJ1,4691,37298-6.6
Water resourcesTotal water usagethousand m348845929-6.0
Tap waterthousand m35863-58.2
Industrial waterthousand m31048915-14.6
Well waterthousand m332630719-5.8
MaterialsRaw and other materialstons5,1314,778353-6.9
Global warmingCO2(*)tons27,34023,4033,937-14.4
Atmospheric pollutantsSOx (sulfur oxides)tons1.31.5-0.215.9
NOx (nitrogen oxides)tons3.
VOC (volatile organic compounds)tons4245-38.4
Water pollutantsDischarged waterthousand m340639511-2.8
BOD (biochemical oxygen demand)tons4.83.41.4-28.5
COD (chemical oxygen demand)tons2.62.7-0.13.1
SS (suspended solids)tons7.25.22.0-28.0
Waste materialsEmissionstons2,7372,548188-6.9
Recycled resourcestons2,7312,543187-6.9
Final disposaltons0.

  • CO₂ conversion on Market-based


Reporting boundary

Japan: all facilities including sales offices.
Other countries: Principal production facilities, Suzhou Plant (China).

Guidelines referenced

These data have been prepared with reference to the Environmental Reporting Guidelines (2018 edition, Ministry of the Environment of Japan), the Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain (Ministry of the Environment of Japan / Ministry of Economy, Trade and Industry of Japan, Ver. 2.3), the Environmental Accounting Guideline (2005 edition, the Ministry of the Environment of Japan), the Greenhouse Gas Protocol, and the GRI Standards.

Numerical results

Total numbers may not always match, due to the effect of rounding and other reasons.