Fiscal 2018 Environmental Performance Data

Environmental Preservation

Fiscal 2018 Environmental Performance Data

Production Volume and Energy Consumption Intensity

The energy consumption in fiscal 2018 was 93.5% compared to fiscal 2013 and we have succeeded in making continuous improvement of 1% or more per year. The production volume is expected to increase in fiscal 2019. In the circumstances, we will continue to promote more efficient energy savings by continuing energy saving and high-efficiency operation at each manufacturing plant.

CO₂ emissions intensity

CO2 emissions intensity

The CO₂ emission intensity in fiscal 2018 was 91.5% compared to that in fiscal 2013 and we have succeeded in making continuous improvement of 1% or more per year. An increase in CO₂ emissions is expected due to an increase in production volume. In the circumstances, we will continue to promote efficient energy savings at each manufacturing plant.

CO₂ emissions

CO₂emissions
Fiscal year		2014	2015	2016	2017	2018	2019
	Unit	Results	Results	Results	Results	Results	Target
From energy sources	Thousand tons	1,320	1,200	1,170	1,210	1,150	1,160
From non-energy sources	Thousand tons	980	900	920	970	890	930

The fiscal 2018/2019 targets shall be applied to only Denka’s six sites and Innovation Center.
* The data of fiscal 2018 and later includes that of the Head Office, branches and sales offices.

CO₂ emissions

CO2 emissions

PRTR Substances

We will endeavor to reduce emissions in a systematic manner with a focus on reducing emissions into the atmosphere.

PRTR Substances
Fiscal year		2014	2015	2016	2017	2018	2019
	Unit	Results	Results	Results	Results	Results	Target
Denka	tons	79	74	87	78	77	76
Affiliates	tons	4	3	4	8	7	7

The fiscal 2018/2019 targets shall be applied to:
Denka (six domestic plants and the Innovation Center) and
domestic affiliates (six companies: Denka Polymer, Denka Seiken, Denka Elastlution, Hinode Kagaku Kogyo, Denka Azumin and Kyusyu Plastic)

PRTR Substances

Final Disposal Amount and Waste Emission Ratio

The efforts to reduce the final disposal amount show their effects in our company alone, but due to an increase in production at overseas affiliates, the amount of final disposal will increase. In the circumstances, we will endeavor to reduce the amount of waste generated by recycling and continue to achieve zero emissions in collaboration with the mother factory in Japan and relevant departments.

Trends in disposal amount and waste emission
Fiscal year			2014	2015	2016	2017	2018	2019
		Unit	Results	Results	Results	Results	Results	Target
Denka	Amount of waste generated	tons	119,200	120,286	109,650	112,980	121,433	115,525
Denka	Amount of waste generated	tons	156	153	119	88	49	58
Denka	Emissions ratio		0.13%	0.13%	0.11%	0.08%	0.04%	0.05%
Domestic affiliates	Amount of waste generated	tons	1,265	1,259	1,210	1,310	1,584	1,419
Domestic affiliates	Amount of final landfill waste	tons	81	92	89	108	196	186
Overseas affiliates	Amount of waste generated	tons	2,385	2,589	2,607	2,663	2,317	2,596
Overseas affiliates	Amount of final landfill waste	tons	349	285	268	346	285	297
Group’s total	Amount of waste generated	tons	122,850	124,134	113,467	116,953	125,334	119,540
Total of affiliates	Amount of final landfill waste	tons	430	377	357	454	481	483
Group’s total	Amount of final landfill waste	tons	586	530	476	542	530	541
Group’s total	Emissions ratio	％	0.48%	0.43%	0.42%	0.46%	0.42%	0.45%

* Emissions ratio (%) = amount of final landfill waste / amount of waste generated x 100
* In Denka’s definition, “zero emissions” means an emission ratio lower than 1%.

The fiscal 2018/2019 targets shall be applied to the total 22 bases to compile data:
Denka (six domestic plants and the Innovation Center),
domestic affiliates (six companies: Denka Polymer, Denka Seiken, Denka Elastlution, Hinode Kagaku Kogyo, Denka Azumin and Kyusyu Plastic) and oversees business bases (four bases in China, four bases in Singapore, and one base in Vietnam).

Waste emissions ratio

SOx

Although there is a variation in emissions due to changes in fuel and other factors, the amount of emissions has remained almost unchanged in fiscal 2018.

Fiscal year		2014	2015	2016	2017	2018	2019
	Unit	Results	Results	Results	Results	Results	Target
Denka	tons	65	54	65	44	47	43
tons	tons	104	77	75	84	106	87

The fiscal 2018/2019 targets shall be applied to the total 22 bases to compile data:
Denka (six domestic plants and the Innovation Center),
domestic affiliates (six companies: Denka Polymer, Denka Seiken, Denka Elastlution, Hinode Kagaku Kogyo, Denka Azumin and Kyusyu Plastic) and oversees business bases (four bases in China, four bases in Singapore, and one base in Vietnam).

SOx

Soot and dust

The amount of dust increased slightly in fiscal 2018 due to production at the Omi Plant.

Fiscal year		2014	2015	2016	2017	2018	2019
	Unit	Results	Results	Results	Results	Results	Target
Denka	tons	72	88	61	65	81	66
Affiliates	tons	11	10	15	16	16	15

The fiscal 2018/2019 targets shall be applied to the total 22 bases to compile data:
Denka (six domestic plants and the Innovation Center),
domestic affiliates (six companies: Denka Polymer, Denka Seiken, Denka Elastlution, Hinode Kagaku Kogyo, Denka Azumin and Kyusyu Plastic) and oversees business bases (four bases in China, four bases in Singapore, and one base in Vietnam).

Soot and dust

NOx

In fiscal 2018, the activity to reduce failure of fused silica has contributed to the reduction.
In fiscal 2019, we will endeavor to reduce emissions by optimizing operations, etc.

Fiscal year		2014	2015	2016	2017	2018	2019
	Unit	Results	Results	Results	Results	Results	Target
Denka	tons	4,250	4,150	4,190	4,370	4,040	4,200
Affiliates	tons	840	700	760	840	680	650

The fiscal 2018/2019 targets shall be applied to the total 22 bases to compile data:
Denka (six domestic plants and the Innovation Center),
domestic affiliates (six companies: Denka Polymer, Denka Seiken, Denka Elastlution, Hinode Kagaku Kogyo, Denka Azumin and Kyusyu Plastic) and oversees business bases (four bases in China, four bases in Singapore, and one base in Vietnam).

NOx

COD(BOD)

The reduction effect has been maintained through improvement of the wastewater treatment facility at the Omi Plant (started to operate in February 2016).

Fiscal year		2014	2015	2016	2017	2018	2019
	Unit	Results	Results	Results	Results	Results	Target
Denka	tons	760	580	360	330	230	250
Affiliates	tons	8	9	7	8	7	7

The fiscal 2018/2019 targets shall be applied to the total 22 bases to compile data:
Denka (six domestic plants and the Innovation Center),
domestic affiliates (six companies: Denka Polymer, Denka Seiken, Denka Elastlution, Hinode Kagaku Kogyo, Denka Azumin and Kyusyu Plastic) and oversees business bases (four bases in China, four bases in Singapore, and one base in Vietnam).

COD（BOD）

Water used

Denka
	Fiscal 2015 results	Fiscal 2016 results	Fiscal 2017 results	Fiscal 2018 results	Fiscal 2019 target
(fiscal 2015 base)	(1.00)	0.99	0.96	0.99	0.96
Water used (km³)	66,539	61,752	57,259	59,424	59,794
	7 bases

Domestic affiliates
	Fiscal 2016 results	Fiscal 2017 results	Fiscal 2018 results/th>	Fiscal 2019 target
Water used (km³)	2,691	2,961	2,778	2,883
	14 bases	15 bases	15 bases	15 bases

Group’s total
	Fiscal 2016 results	Fiscal 2017 results	Fiscal 2018 results	Fiscal 2019 target
Water used (km³)	64,443	60,220	62,202	62,677
	21 bases	22 bases	22 bases	22 bases

Breakdown of emissions and transfers in fiscal 2018

The following table shows PRTR substances emitted and transferred exceeding one ton.

Acetaldehyde

PRTR Substances	No.	Emissions					Amount transferred (to the outside)
PRTR Substances	No.	Air	Water	Soil	Landfill	Total	Amount transferred (to the outside)
Ethyl acrylate	3	2	0	0	0	2	0
n-Butyl acrylate	7	0	0	0	0	0	2
Acrylonitrile	9	3	0	0	0	3	10
12	0	3	0	0	3	0
Aniline	18	0	0	0	0	0	3
Ethyl benzene	53	4	0	0	0	4	39
Ferric chloride	71	0	0	0	0	0	48
Vinyl acetate	134	4	0	0	0	4	0
N,N-Dimethylacetamide	213	0	0	0	0	0	1
N,N-Dimethylformamide	232	0	0	0	0	0	21
Styrene	240	19	0	0	0	19	113
Water soluble copper salt	272	0	4	0	0	4	0
Toluene	300	12	0	0	0	12	31
Carbon disulfide	318	2	1	0	0	3	0
Hydrogen fluoride and its water-soluble salt	374	1	1	0	0	3	32
n-Hexane	392	0	0	0	0	0	2
Benzene	400	0	0	0	0	0	9
Boron and its compounds	405	0	15	0	0	15	14
2-Ethylhexyl methacrylate	416	0	0	0	0	0	1
Methyl methacrylate	420	2	0	0	0	2	16
Total (tons/year)		49	24	0	0	74	343
Dioxin (mg-TEQ/year)	243	0	0	0	0	0	2

Scope of Calculation

Environmental Performance Data	Denka’s six domestic plants *1	Innovation Center	Non-manufacturing sectors (Head Office, branches, etc.)	Domestic affiliates (6)	Overseas business bases (9)
Environmental Performance Data	Denka’s six domestic plants *1	Innovation Center	Non-manufacturing sectors (Head Office, branches, etc.)	Denka Polymer, Denka Seiken, Denka Elastlution, Hinode Kagaku Kogyo, Denka Azumin and Kyusyu Plastic*2	Merbau, Seraya, Tuas, Tuas South, Suzhou (Denka Advanced Materials and Denka Chemicals Development), Tianjin, Dalian and Vietnam
Overview of Environmental Impacts	○	–	–	–	–
Environmental Accounting	○	○	–	–	–
①Production Volume and Energy Consumption Intensity	○	–	○	–	–
②CO₂ Emissions Intensity (from energy sources)	○	○	○	–	–
②CO₂ Emissions	○	–	○	–	–
③Emissions of PRTR Substances	○ Note: Excluding emissions from Toyo Styrene and Taiyo Vinyl Corporation operating on the Chiba Plant’s premises	○	–	○	–
④Final Disposal Amount and Waste Emission Ratio	○ Note: Excluding emissions from Toyo Styrene and Taiyo Vinyl Corporation operating on the Chiba Plant’s premises	○	–	○	○
⑤SOx	○	○	–	○	○
⑥NOx	○	○	–	○	○
⑦Soot and dust	○	○	–	○	○
⑧COD(BOD)	○	○	–	○	○
⑨Ratio of Each Business Site in Overall Emissions	○	○	–	○	○

*1Including emissions from affiliates operating on the premises of Denka plants: Denal Silane Co., Ltd., and Denak Co., Ltd. at Omi Plant, ; TOYO STYRENE Co., Ltd., and Taiyo Vinyl Corp. at Chiba Plant
*2Emissions from Kyusyu Plastic Industry Co., Ltd. has been included since fiscal 2017.
At present, some items presented herein encompass only emissions from Denka’s domestic business bases, including six domestic plants; however, we are steadily increasing the incorporation of emissions from domestic affiliates, overseas business bases and all other Group entities classified within the scope of consolidation in order to expand the scope of calculation for all items.

デンカ株式会社, デンカ株式会社　IR室

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