

Number of visitors to the refinery in fiscal 2006
43 visits; 469 people
Working hours with no accidents (as of December 2006)
8,652 thousands hours
PCB custody status
High voltage condensers 59 units
Others

| Air pollution control manager |
16 |
| Water pollution control manager |
15 |
| Noise pollution control manager |
4 |
| Vibration pollution control manager |
3 |
| Dioxin pollution control manager |
2 |
| Hazardous materials officer (Class A & B) |
411 |
| High-pressure gas production safety manager (Class A & B) |
273 |
| Qualified person for energy management |
27 |
| Specially-controlled industrial waste manager |
5 |
| Engineering manager for disposal facilities of industrial waste |
7 |
| Boiler operator (Special grade) |
8 |
| Boiler operator (1st & 2nd grade) |
249 |

Air pollutants
| Pollutant |
Standard |
Actual Performance in FY2006 |
| Maximum |
Average |
| NOx (m3N/hour; total pollutant load control) |
80.8 |
60.1 |
23.1 |
| SOx (m3N/hour; total pollutant load control) |
109.48 |
63 |
20.5 |
| Particulate (boiler; g/m3N) |
0.049 |
0.018 |
0.013 |
Water pollutants
| Pollutant |
Standard |
Actual Performance in FY2006 |
| Maximum |
Average |
| COD (kg/day; total pollutant load control) |
535.0 |
302.1 |
114.8 |
| COD (mg/l) |
160 (120) |
13 |
4.2 |
| SS (mg/l) |
200 (150) |
20 |
5 |
| Oil content (mg/l) |
1 |
0.7 |
Below measurement threshold |
| Nitrogen (kg/day; total pollutant load control) |
697.0 |
138.66 |
36.33 |
| Nitrogen (mg/l) |
(15) |
3 |
Below measurement threshold |
| Phosphorus (kg/day; total pollutant load control) |
80.47 |
2.80 |
0.58 |
| Phosphorus (mg/l) |
(1.5) |
0.89 |
0.42 |
| Phenols (mg/l) |
1 |
Below measurement threshold |
| Benzene (mg/l) |
0.1 |
0.10 |
0.02 |
Note: Values in ( ) indicate daily average.

| PRTR Listed Substances |
Release Volume |
Transfer Volume |
| Air |
Water |
Soil |
Total |
| Asbestos (kg/year) |
0 |
0 |
0 |
0 |
5,300 |
| Ethylbenzene (kg/year) |
390 |
0 |
0 |
390 |
0 |
| Xylene (kg/year) |
1,600 |
0 |
0 |
1,600 |
0 |
| 1,3,5-trimethylbenzene (kg/year) |
5.2 |
0 |
0 |
5.2 |
0 |
| Toluene (kg/year) |
6,000 |
0 |
0 |
6,000 |
0 |
| Nickel compounds (kg/year) |
0 |
0 |
0 |
0 |
17,000 |
| Benzene (kg/year) |
1,500 |
0 |
0 |
1,500 |
0 |
| Zinc compounds (Water soluble) (kg/year) |
0 |
2,800 |
0 |
2,800 |
0 |
| Antimony and its compounds (kg/year) |
0 |
0 |
0 |
0 |
1,000 |
| Cobalt and its compounds (kg/year) |
0 |
0 |
0 |
0 |
80 |
| Molybdenum and its compounds (kg/year) |
0 |
0 |
0 |
0 |
240 |
Note: In addition to above, we treat 2-aminoethanol, 1.2-dichloropropane, 1,2-dichloroethane, and hydrazine. The over 1,000 kg per year, the release and transfer volumes are 0 kg per year for all substances.

Air pollutants
| Pollutant |
Emissions |
| NOx (t/year) |
68 |
| SOx (t/year) |
33 |
Water pollutants
| Pollutant |
Releases |
| COD (t/year) |
0.3 |
Industrial waste
| Generated (t/year) |
5,308 |
| Recycled (t/year) |
5,308 |
| Sent to landfill (t/year) |
0 |
| Energy consumption (1,000kl-crude oil/year) |
14 |
| CO2 emissions (1,000t-CO2/year) |
107 |


Energy Consumption

CO2 Emissions

Sulfur Oxide (SOx) and Nitrogen Oxides (NOx) Emissions

COD Discharge

Industrial Waste

Environmental conservation costs
| Category and Key Activity |
FY2006 |
| Investment |
Expense |
| 1. Business area costs |
Pollution prevention |
21 |
2,561 |
| |
Global environment conservation |
1 |
6,003 |
| |
Resource circulation |
0 |
282 |
| 2. Upstream and downstream costs |
Green purchasing |
0 |
0 |
| |
Reducing environmental impact of products |
106 |
9,580 |
| |
Reducing sulfur content of products |
(57) |
(6,381) |
| |
Replacement of toxic substances in gasoline |
(49) |
(3,199) |
| 3. Administration costs |
|
13 |
120 |
| 4. Research and development costs |
|
0 |
0 |
| 5. Social activity costs |
|
0 |
0 |
| 6. Environmental remediation costs |
|
0 |
58 |
| Total |
141 |
18,604 |
Note: Recycled paper purchased: 1 million yen
| Details of Benefits |
FY2006 |
| Energy conservation (cogeneration) |
528 |
| Gypsum sales |
105 |
| Ammonia recycling |
140 |
| Total |
773 |
Environmental conservation benefits
| Item |
FY2006 |
Concentration / unit value |
Environmentel impacts |
| (1)Benefits corresponding to worksite costs |
|
|
| Resources input into business activities |
|
|
| Energy input |
9.85 (kl-crude/1,000kl) |
18,873 (TJ) |
| Water input |
321 (kg/kl) |
19,008 (1,000t) |
| Related to environmental impacts and wastes generated by business activities |
|
|
| Emissions to air |
CO2 |
23.90 (kg-CO2/kl) |
1,254 (1,000t-CO2) |
| |
SOx |
10.1 (g/kl) |
516 (t) |
| |
NOx |
7.2 (g/kl) |
415 (t) |
| |
Benzene |
0.03 (g/kl) |
1.50 (t) |
| Discharge to water |
COD |
0.87 (g/kl) |
41.9 (t) |
| Industrial waste |
Generated |
139 (g/kl) |
11,970 (t) |
| |
Recycled |
85 (g/kl) |
9,377 (t) |
| |
Landfill |
2 (g/kl) |
78 (t) |
| (2)Benefits related to upstream and downstream costs |
|
|
| Benefits of reducing environmental impact of products |
|
|
| Reducing sulfur content of products |
(sulfur content:mass %) |
(potential SOx emissions:t) |
| |
High octane gasoline |
0.0003 |
1 |
| |
Regular gasoline |
0.0003 |
6 |
| |
Naphtha |
0.0311 |
284 |
| |
Jet fuel oil |
0.0005 |
3 |
| |
Kerosene |
0.0005 |
7 |
| |
Diesel fuel oil |
0.0007 |
15 |
| |
Heavy fuel oil A |
0.3795 |
7,733 |
| |
Heavy fuel oil C |
2.3463 |
38,695 |
| |
LPG |
0.0010 |
3 |
| |
Total |
0.4134 |
46,748 |
| Reducing benzene in gasoline |
0.5008(vol %) |
6,940 (t) |
| Reduction of CO2 emissions from product use |
2.5271 (t-CO2/kl) |
18,260 (1,000t-CO2) |