kuraray


Environmental Report

Approaches to the Environment

Control on Emission of Chemical Substances

Based on the Law Concerning Reporting, etc. of Pollutant Release and Transfer Register (PRTR Law), the domestic Kuraray Group checks, records and reports relevant chemical substances to the state. The Kuraray Group similarly discloses on its website and other places emissions of chemical substances not covered by the PRTR Law, but designated by the Japan Chemical Industry Association (JCIA) by checking and recording them.
In addition to them, persistent organic pollutants (POPs), volatile organic compounds (VOCs), hazardous atmospheric pollutants (HAPs) and particulate matter (PM) are considered to be chemical substances and Kuraray is taking action as explained in the table.

Classification Name of Substance Action Taken
POPs Polychlorobiphenyl (PCB) Storing, managing, reporting and processing to render harmless in accordance with the Law Concerning Special Measures against PCB Waste. (Fiscal 2027 is set as a time limit for harm-free processing)
Dioxin and the like Emissions are measured for individual plants and other business units (Please visit Kuraray website)
Substances other than the above Not applicable to Kuraray manufacturing and use
VOC Included as substances in the pollutant release and transfer register (PRTR) and emissions are measured and reported as PRTR substances. (Please visit Kuraray website for emissions by each plant)
HAP
PM Emissions of particles of soot are reported in Material Flow on page 21 of this report
PRTR Emissions of substances applicable to the law and to the list compiled by the Japan Chemical Industry Association are measured and reported (Please visit Kuraray website for emissions by each plant)

Trends in Chemical Substance Emissions at Kuraray Group

Emissions of PRTR substances in Fiscal 2015 totaled 1,010 tons (927 tons into atmosphere and 83 tons into water areas).
The environmental efficiency of Kuraray Group in Japan improved to 121.2 compared with 100 for Fiscal 2010 as the base year. Thanks to the measures taken such as changing the production process from organic solvent system to a water system to control emissions even if the production volume increases, the environmental efficiency is improving year after year.
Legal restrictions such as the PRTR Law of Japan are not imposed on overseas affiliates. However, overseas affiliates are endeavoring to reduce emissions in accordance with the regulations on management of chemical substance emissions of the countries in which they are located. Their emissions totaled 197tons in Fiscal 2015.

Reduction and Effective Waste, and Reduction of Landfill Waste

Since Fiscal 2007, Kuraray Group in Japan has been maintaining “an effective utilization rate of waste of 90% or higher and final landfill disposal rate of 1% or lower.” In Fiscal 2015 also, these rates were maintained by registering an effective utilization rate of 97.6% and final landfill disposal rate of 0.34%.
In Fiscal 2015, the environmental efficiency stood at 99.4 compared with 100 for Fiscal 2010 as the base year and remained almost unchanged.
Owing to increases in its production volume, industrial waste generated by Kuraray Group in Japan has been slightly increasing in the past several years. The plants and affiliates are making continuous efforts to maximally reduce waste generated such as by improving product yields.
On the other hand, production volumes at our overseas affiliates continue to increase owing to M&A and more investments in equipment to increase production. Their production volume has increased about 3 times including intermediate product compared with 2010. As the result, more waste is generated about 2.6 times compared with 2010 even though they have make effort to reduce waste generation. Therefore environmental efficiency has extremely decreased into 71 with 100 for fiscal 2010. Our overseas affiliates will carefully watch trends in the future also and continuously optimize operational conditions and recycle waste among various streamlining schemes. The plants and affiliates are making continuous efforts to maximally reduce waste generated such as by improving product yields.
The reasons why the amount of waste generated by our overseas affiliates is very small compared with the domestic Kuraray group are that utilities such as electricity are purchased from outside suppliers and that wastewater treatment at the plants is outsourced to outside disposal companies so that soot and incineration residues from boilers and sludge from wastewater treatment facilities are not generated physically.

Trends in the Amount of Waste Generation at Kuraray Group in Japan

Trends in the Amount of Waste Generation at Overseas affiliated companies

Trends in Rates of Beneficial Waste Use at Kuraray Group in Japan

Trends in Rates of Waste Landfill Disposal at Kuraray Group in Japan