Global Warming Prevention

GHG Emissions (Scope 1 and 2) and Initiatives of the Kuraray Group

Total GHG emissions of the Kuraray Group further decreased by 4.1% from 3,020 thousand tons-CO2e in 2021 to 2,896 thousand tons-CO2e in 2022 (down 10.4% compared to 2019*).
*Base year for GHG emission reductions in the Planet section of the Kuraray Group Sustainability Medium-Term Plan

GHG emissions of the Kuraray Group in Japan decreased from 1,340 thousand tons - CO2e in 2021 to 1,236 thousand tons - CO2e in 2022. Each Kuraray Group production site in Japan continued to work on GHG reduction measures, such as improving the yield of each product, recycling raw materials and utilities, upgrading to energy-saving equipment, and carrying out energy-saving activities (waste elimination activities). In 2022, we implemented measures to reduce 21 thousand tons - CO2e. In addition, the Kurashiki Plant stopped using in-house power generation facilities in 2022 and switched to use electricity purchased from outside the company and steam from small once-through boilers. This reduced the GHG emissions significantly.
GHG emissions of the Kuraray Group overseas decreased slightly from 1,680 thousand tons - CO2e in 2021 to 1,660 thousand tons - CO2e in 2022. (In 2022, the Kuraray Group obtained unbundled energy attribute certificates equivalent to 66 thousand tons - CO2e. The GHG emissions in 2022 include the GHG emission reduction of these certificates.). Energy consumption at some production sites in overseas Kuraray Group increased due to higher production volumes. On the other hand, the activities such as energy saving and yield improvement were implemented at each production site of overseas Kuraray Group. In addition, some production sites were forced to suspend production temporarily because of equipment issues. This resulted in overall GHG emissions on the same level as the previous year.
The sales intensity of energy consumption in Kuraray Group, which was set as the targets for reduction of environmental load in the Sustainability Medium-Term Plan for Planet reduced by 17.2% (improvement) compared to 2019, far exceeding our target of the reduction (improvement) of 5% or more in 2026. Going forward, we will continue to work on further improvement of sales intensity through energy-saving activities that will lead to reduce GHG emissions.

The Kuraray Group’s total GHG emissions increased in the period from fiscal 2014 to fiscal 2019 due to the incorporation of businesses through M&A, such as the acquisition of the vinyl acetate business and the activated carbon business (Calgon Carbon Corporation). In particular, the acquisition of Calgon Carbon Corporation in 2018 resulted in a significant rise in the Kuraray Group’s GHG emissions. The GHGs emitted by Calgon Carbon Corporation consist largely of the CO2 generated as a byproduct in the process of producing activated carbon products. (Activated carbon is produced by burning a part of coal used in the process to form micropores on its surface. At this stage of the process, the carbon removed from the surface of the coal to form the micropores is released into the atmosphere as CO2. In this way, activated carbon emits a large amount of CO2 during production.) On the other hand, activated carbon is widely used as an indispensable product for the adsorption and removal of hazardous chemical substances contained in factory exhaust gas and for the purification of industrial effluents and raw water for drinking. Activated carbon thus contributes greatly to improving the global environment and reducing environmental impact.

The Kuraray Group plans call for executing CAPEX of 80 billion JPY by 2030, and will continue to consider establishing the technologies to implement Carbon dioxide Capture, Utilization and Storage (CCUS) system, which the CO2 is a by-product of the production process. We will also work on energy-saving investments and convert electricity to renewable energy. In addition, in our efforts to convert our own power generation facilities, which a large source of our Company’s GHG emissions, we aim to achieve Carbon Net Zero by 2050 by identifying and using the effective future technologies such as green hydrogen, green ammonia, and other technologies.

<GHG emissions(Scope1 + Scope2), Energy consumption ( Entire Kuraray Group)>

2018 2019 2020 2021 2022
Kuraray Group(in Japan+outside Japan) GHG emissions(Scope1+Scope2) thousand tons-CO2e 3,188 3,231 3,045 3,020 2,896
Scope1 emissions thousand tons-CO2e 2,000 2,060 2,045 1,973 1,877
Scope2 emissions thousand tons-CO2e 1,188 1,170 1,000 1,047 1,020
Energy consumption crude oil equivalent,1,000 kl 1,077 1,089 1,002 1,075 1,065
Sales intensity of energy consumption (intensity of 2019 as 100) target Reduction of 5% or more in 2026 compared to 2019
result 100 82.8
(17.2% reduction)

<GHG emissions・Energy consumption(Separate in Japan and outside Japan)>

2018 2019 2020 2021 2022
Kuraray Group in Japan GHG emissions(Scope1+Scope2) thousand tons-CO2e 1,320 1,310 1,229 1,340 1,236
Scope1 emissions thousand tons-CO2e 1,138 1,121 1,067 1,163 1,047
Scope2 emissions thousand tons-CO2e 182 189 162 177 189
Energy consumption crude oil equivalent, 1,000 kl 455 452 422 452 430
Kuraray Group outside Japan GHG emissions(Scope1+Scope2) thousand tons-CO2e 1,868 1,921 1,816 1,680 1,660
Scope1 emissions thousand tons-CO2e 862 939 978 810 830
Scope2 emissions thousand tons-CO2e 1,006 981 838 870 830
Energy consumption crude oil equivalent, 1,000 kl 622 637 580 623 635

【Notes】As a result of the change in months in each fiscal year, the environmental data and information contained in this report including graphs are as follows.

  • ・Before fiscal 2013: Actuals in 12 months from April to March of the following year
  • ・Fiscal 2014: Actuals for 9 months from April to December + Actuals for January to March 2014 (or estimated value) [Partially overlaps with fiscal 2013]
  • ・After fiscal 2015 : Actuals for 12 months from January to December

GHG Emissions(Scope 3)

The GHG Protocol* classifies GHG emissions into three categories: Scope 1, 2 and 3.

Scope 1: Direct emissions
 GHG emissions generated by fuel combustion at the plants and other facilities of one’s own company
Scope 2: Indirect emissions
 GHG emissions generated by the use of purchased energy such as electricity, heat, and steam supplied by other companies
Scope 3: Other indirect emissions
 The other indirect emissions. GHG emissions along the entire supply chain (from procurement of raw materials to product disposal.)

Mandated under the law by which businesses calculate and report Scope 1 and Scope 2 to the government, we report these figures for the whole Kuraray Group to the government and publish the results mainly in the Kuraray Report and on the Kuraray Group’s website.

On the other hand, Scope 3, which means the GHG emissions based on the entire supply chain related to us other than Scope 1 and Scope 2, is indirect GHG emissions generated from the viewpoint of a life cycle such as raw material procurement, product distribution, product use and disposal as well as the direct emissions related to our business activities. Since fiscal 2013, we have made and are publishing Scope 3 calculations for some categories in the Kuraray Group in Japan. In Sustainability Medium-term Plan for Planet, the scope of calculation will be expanded not only to Japan but also to the entire Kuraray Group, while the accuracy of calculation will be improved, seeking to identify categories that account for two-thirds of all Scope 3 emissions.

In 2022, among the 15 categories in the total of Scope 3, we calculated actual values for 5 categories [(1) to (5)] with a relatively large emission amount, excluding those not applicable to us and those having a limited calculation coverage in the products of the Kuraray Group. We will also continue to quantify our environmental contribution based on evaluations on the life cycle of our products.

* GHG Protocol (Greenhouse Gas Protocol) is an initiative to develop international standards and related tools on greenhouse gases and climate change led by the World Resources Institute (WRI) and World Business Council for Sustainable Development (WBCSD) and participated in by corporations, NGOs, government institutions and other organizations throughout the world.

Conceptual Image of Control on Emissions of Greenhouse Gases in Entire Scope 3 Supply Chain ((1) to (15) show categories of Scope 3) (Scope covered: Kuraray Co., Ltd.)

<GHG emissions(Scope3)*1

(Unit:thousand tons-CO2e)

2018 2019 2020 2021 2022
Upstream Purchased goods and services*2 684 598 388 563 722
Capital goods 121 170 108 91 98
Fuel and energy related activities not included in Scope1,2 130 140 130 153 148
Transportation and distribution 12 12 10 12 12
Waste generation in operations 24 27 26 23 22
Business travel Not calculated
Employee commuting
Leased assets*3
Downstream Transportation and delivery
Processing of sold products The Data is not disclosed because the scope of the calculation covers very limited Kuraray products.
Use of sold products
End-of-life treatment of sold products
Leased assets*4 *4,5,6 Not Applicable
Others *7 Not calculated
Total*8 971 946 662 842 1,002
  • *1 Boundary is Kuraray Group in Japan. (Coverage:40%)
  • *2 Calculation method: Purchased amounts of major sixty-two raw materials were multiplied by emission index (purchasing price and amount basis) of each raw material.
     In 2022, emissions have increased in terms of calculation on purchasing price and amount basis due to the increase in raw material prices.
  • *3 Offices, electric appliances and company cars are leased. These are included in Scope 1, 2.
  • *4 No assets are leased to other company.
  • *5 Franchise system is not applied.
  • *6 Other company's stock was not held for investment purpose as reported in the security report.
  • *7 Optional category indirectly related to corporate activity except for Category 1 to Category 15

<Example of Scope 3 GHG Emission Reduction Efforts (Reduction of Environmental Load during Product Transportation)>

We are working to reduce GHG emissions at the logistics stage, when transporting products to users. For example, to improve the efficiency of transportation by truck, we are consolidating the storage locations of products (warehouses) to ship products previously shipped from multiple locations from a single location. Through such large-lot transportation hubs, we are working so that products previously transported using multiple trucks can be loaded onto a single trailer. We also continue to pursue a modal shift, switching from trucks and other motor vehicles to modes of transportation with less environmental impact, such as freight trains and ships. In addition, in 2019 we submitted a declaration of voluntary activities in support of the White Logistics Movement being promoted by the Japanese government.