Number of Staff holding Environmental Qualifications (as of March 31, 2006)

Air pollution control manager	15
Water pollution control manager	20
Noise pollution control manager	4
Dioxin pollution control manager	2
Hazardous materials officer (Class A & B)	579
High-pressure gas production safety manager (Class A & B)	239
Qualified person for heat management	17
Qualified person for electricity management	5
Specially-controlled industrial waste manager	1
Engineering manager for disposal facilities of industrial waste	1
Boiler operator (Special grade)	4
Boiler operator (1st & 2nd grade)	306

Regulated Pollutants

Air pollutants

Pollutant	Standard	Actual performance in FY2005
		Maximum	Average
NOx (m3N/hour; total pollutant load control)	141.1	116.9	93.5
SOx (m3N/hour; total pollutant load control)	157.5	150.4	108.8
Particulate (boiler; g/m3N)	0.07	0.02	0.026

Water pollutants

Pollutant	Standard	Actual performance in FY2005
		Maximum	Average
COD (kg/day; total pollutant load control)	223	207.2	110.0
COD (mg/l)	25	2.8	3.5
SS (mg/l)	50	9.2	6.5
Oil Content (mg/l)	3	0.6	0.6
Nitrogen (kg/day; total pollutant load control)	222	195.6	99.3
Nitrogen (mg/l)	(10)	2.0	1.6
Phosphorus (kg/day; total pollutant load control)	12.5	4.7	2.2
Phosphorus (mg/l)	(1)	0.13	0.08
Phenols (mg/l)	0.5	Below measurement threshold

Note: Value in ( ) are daily average.

Environmental Performance (PRTR)

PRTR listed substances	Releases				Transfers
	Air	Water	Soil	Total
Ethylbenzene (kg/year)	280	0	0	280	0
Xylene (kg/year)	1,100	0	0	1,100	0
1,3,5-trimethylbenzene (kg/year)	1.0	0	0	1.0	0
Toluene (kg/year)	7,400	0	0	7,400	0
Benzene (kg/year)	860	0	0	860	0
Dioxins (mg-TEQ/year)	0.00	0	0	0	0.00

Note: In addition to above, we treat 2-aminoethanol, cobalt and its compounds, nickel compounds, molybdenum and its compounds, cresol, cyclohexylamine, tetrachloroethylene, nonylphenol, and hydrazine over 1,000 kg per year, the release and transfer volume are 0 kg per year for all substances.

Environmental Accounting

Category and Key Activity		FY2005
		Investment	Expense
1. Business area costs	Pollution prevention	67	1,629
	Global environment conservation	0	3,199
	Resource circulation	0	289
2. Upstream and downstream costs	Green purchasing	0	0
	Reducing environmental impact of products	1,126	23,309
	Reducing sulfur content of products	(1,072)	(20,102)
	Replacement of toxic substances in gasoline	(53)	(3,207)
3. Administration cost		0	128
4. Research and development cost		0	0
5. Social activity cost		0	1
6. Environmental remediation cost		0	0
Total		1,193	28,555

Note: Purchasing recycled paper: 1 million yen

Details of Benefit	FY2005
Energy conservation (cogeneration)	331
Total	331

Environmental conservation benefits

Item		FY2005
		Concentration / unit value	Impact
(1) Benefits corresponding to worksite costs
Resources input into business activities
Energy input		8.21 (kl-crude/1,000kl)	28,886 (TJ)
Water input		127 (kg/kl)	11,510 (1,000t)
Related to environmental impacts and wastes
Emissions to air	CO2	22.08 (kg-CO2/kl)	2,003 (1,000t-CO2)
	SOx	27.6 (g/kl)	2,503 (t)
	NOx	18.5 (g/kl)	1,682 (t)
	Benzene	0.01 (g/kl)	0.86 (t)
Discharge to water	COD	0.44 (g/kl)	40.2 (t)
Industrial waste	Generated	173 (g/kl)	15,668 (t)
	Recycled	58 (g/kl)	5,243 (t)
	Landfill	1 (g/kl)	110 (t)
(2) Benefits related to upstream and downstream costs
Benefits of reducing environmental impact in products
Reducing sulfur content of products		(sulfur content : mass%)	(potential SOx : t)
	High octane gasoline	0.0005	3
	Regular gasoline	0.0004	12
	Naphtha	0.0282	600
	Jet fuel oil	0.0112	180
	Kerosene	0.0005	13
	Diesel fuel oil	0.0007	31
	Heavy fuel oil A	0.4003	9,247
	Heavy fuel oil C	0.7139	25,140
	LPG	0.0005	3
	Total	0.1713	35,230
Reducing benzene in gasoline		0.4383 (volume%)	9,454 (t)
Reduction of CO2 emissions from product use		2.5162 (t-CO2/kl)	32,763 (1,000t-CO2)