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

Air pollution control manager	9
Water pollution control manager	12
Hazardous materials officer (Class A & B)	327
High-pressure gas production safety manager (Class A & B)	175
Qualified person for heat management	9
Qualified person for electricity management	4
Specially-controlled industrial waste manager	3
Engineering manager for disposal facilities of industrial waste	2
Boiler operator (Special grade)	2
Boiler operator (1st & 2nd grade)	215

Regulated Pollutants

Air pollutants

Pollutant	Standard	Actual performance in FY2005
		Maximum	Average
NOx (m3N/hour; total pollutant load control)	190	45	34
SOx (m3N/hour; total pollutant load control)	164	67.3	60.3
Particulate (chimney; g/m3N)	0.05	0.007	0.005

Water pollutants

Pollutant	Standard	Actual performance in FY2005
		Maximum	Average
COD (kg/day; total pollutant load control)	142.8	47.4	27.1
COD (mg/l)	15 (10)	5.0	4.2
SS (mg/l)	15 (10)	10.0	4.9
Oil Content (mg/l)	2	Below measurement threshold
Nitrogen (kg/day; total pollutant load control)	195	78.1	28.9
Nitrogen (mg/l)	120 (60)	2.3	1.5
Phosphorus (kg/day; total pollutant load control)	20.52	1.31	0.12
Phosphorus (mg/l)	16 (8)	0.03	0.03
Phenols (mg/l)	1	Below measurement threshold

Note: Value in ( ) are daily average.

Environmental Performance (PRTR)

PRTR listed substances	Releases				Transfers
	Air	Water	Soil	Total
Ethylbenzene (kg/year)	670	0	0	670	0
Xylene (kg/year)	2,800	0	0	2,800	0
1,3,5-trimethylbenzene (kg/year)	0.3	0	0	0.3	0
Toluene (kg/year)	10,000	0	0	10,000	0
Nickel compounds (kg/year)	0	0	0	0	830
Benzene (kg/year)	2,600	0	0	2,600	0
Zinc compounds (Water soluble) (kg/year)	0	1,400	0	1,400	0

Note: In addition to above, we treat 2-aminoethanol, cobalt and its compounds, cyclohexylamine and molybdenum and its compounds 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	31	876
	Global environment conservation	0	0
	Resource circulation	0	77
2. Upstream and downstream costs	Green purchasing	0	0
	Reducing environmental impact of products	588	11,854
	Reducing sulfur content of products	(288)	(8,418)
	Replacement of toxic substances in gasoline	(299)	(3,436)
3. Administration cost		14	36
4. Research and development cost		0	0
5. Social activity cost		0	0
6. Environmental remediation cost		0	0
Total		632	12,844

Note: Purchasing recycled paper: 1 million yen for buying

Economic benefits	0

Environmental conservation benefits

Item		FY2005
		Concentration / unit value	Impact
(1) Benefits corresponding to worksite costs
Resources input into business activities
Energy input		9.75 (kl-crude/1,000kl)	13,630 (TJ)
Water input		84 (kg/kl)	3,033 (1,000t)
Related to environmental impacts and wastes
Emissions to air	CO2	26.86 (kg-CO2/kl)	969 (1,000t-CO2)
	SOx	41.8 (g/kl)	1,507 (t)
	NOx	17.0 (g/kl)	612 (t)
	Benzene	0.07 (g/kl)	2.60 (t)
Dlscharge to water	COD	0.27 (g/kl)	9.9 (t)
Industrial waste	Generated	486 (g/kl)	17,516 (t)
	Recycled	164 (g/kl)	5,914 (t)
	Landfill	4 (g/kl)	160 (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	0.0002	1
	Regular gasoline	0.0005	10
	Naphtha	0.0599	154
	Jet fuel oil	0.0005	1
	Kerosene	0.0003	3
	Diesel fuel oil	0.0005	8
	Heavy fuel oil A	0.5557	5,869
	Heavy fuel oil C	2.0199	33,659
	LPG	0.0003	1
	Total	0.4652	39,705
Reducing benzene in gasoline		0.5542 (volume%)	7,235 (t)
Reduction of CO2 emissions from product use		2.3250 (t-CO2/kl)	13,461 (1,000t-CO2)