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

Air pollution control manager	17
Water pollution control manager	13
Noise pollution control manager	3
Vibration pollution control manager	1
Hazardous materials officer (Class A & B)	280
High-pressure gas production safety manager (Class A & B)	166
Qualified person for heat management	13
Qualified person for electricity management	3
Specially-controlled industrial waste manager	2
Environmental measurement engineer	2
Boiler operator (Special grade)	4
Boiler operator (1st & 2nd grade)	188

Regulated Pollutants

Air pollutants

Pollutant	Standard	Actual performance in FY2005
		Maximum	Average
NOx (m3N/hour; total pollutant load control)	50.028	12.61	10.87
SOx (m3N/hour; total pollutant load control)	48.011	14.71	0.5
Particulate (CG/EB; g/m3N)	0.03	Below measurement threshold

Water pollutants

Pollutant	Standard	Actual performance in FY2005
		Maximum	Average
COD (kg/day; total pollutant load control)	186.48	113.66	79.20
COD (mg/l)	15 (10)	9.9	7.7
SS (mg/l)	40 (30)	Below measurement threshold
Oil Content (mg/l)	2	Below measurement threshold
Nitrogen (kg/day; total pollutant load control)	206.02	141.99	43.71
Nitrogen (mg/l)	35	3.0	3.0
Phosphorus (kg/day; total pollutant load control)	24.87	1.316	0.691
Phosphorus (mg/l)	1.5	0.512	0.117
Phenols (mg/l)	2	Below measurement threshold

Note: Value in ( ) are daily average.

Environmental Performance (PRTR)

PRTR listed substances		Releases				Transfers
		Air	Water	Soil	Total
Ethylbenzene	kg/year	140	0	0	140	0
Xylene	kg/year	650	0	0	650	0
1,3,5-trimethyl benzene	kg/year	0.5	0	0	0.5	0
Toluene	kg/year	2,200	0	0	2,200	0
Nickel compounds	kg/year	0	0	0	0	1,400
Benzene	kg/year	690	0	0	690	0
Zinc compounds (Water soluble)	kg/year	0	2,200	0	2,200	0

Note: In addition to above, we treat 2-aminoethanol, tetrachloroethylene, 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	77	566
	Global environment conservation	0	2,791
	Resource circulation	0	64
2. Upstream and downstream costs	Green purchasing	0	0
	Reducing environmental impact of products	172	6,124
	Reducing sulfur content of products	(33)	(4,013)
	Replacement of toxic substances in gasoline	(140)	(2,111)
3. Administration cost		0	47
4. Research and development cost		0	0
5. Social activity cost		0	0
6. Environmental remediation cost		0	0
Total		249	9,592

Note: Purchasing recycled paper: 1 million yen

Details of Benefit	FY2005
Energy conservation (cogeneration)	585
Total	585

Environmental conservation benefits

Item		FY2005
		Concentration / unit value	Impact
(1) Benefits corresponding to worksite costs
Resources input into business activities
Energy input		8.94 (kl-crude/1,000kl)	10,905 (TJ)
Water input		189 (kg/kl)	5,944 (1,000t)
Related to environmental impacts and wastes
Emissions to air	CO2	21.98 (kg-CO2/kl)	692 (1,000t-CO2)
	SOx	0.4 (g/kl)	12 (t)
	NOx	6.2 (g/kl)	195 (t)
	Benzene	0.02 (g/kl)	0.69 (t)
Discharge to water	COD	0.92 (g/kl)	28.9 (t)
Industrial waste	Generated	138 (g/kl)	4,348 (t)
	Recycled	43 (g/kl)	1,343 (t)
	Landfill	1 (g/kl)	27 (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	2
	Regular gasoline	0.0004	6
	Naphtha	0.0003	1
	Jet fuel oil	0.0338	246
	Kerosene	0.0011	6
	Diesel fuel oil	0.0007	9
	Heavy fuel oil A	0.3570	2,571
	Heavy fuel oil C	2.4149	27,229
	LPG	0.0003	0
	Total	0.4691	30,068
Reducing benzene in gasoline		0.5562 (volume%)	5,630 (t)
Reduction of CO2 emissions from product use		2.5318 (t-CO2/kl)	10,049 (1,000t-CO2)