2012 Corporate Social Responsibility Report - UMC

Environmental Management Statistics
Year 2012 2011 2010 2009 2008
Electricity Consumption
Total Electricity Consumption (Mwh) 2,080,438 1,998,900 1,856,389 1,618,664 1,680,231
Note: The data coverage of all UMC fabs but does not include off-site offices and dormitories.
Natural Gas Consumption
Total Natural Gas Consumption (Mwh) 220,183 218,804 223,756 202,171 214,814
Notes:
6A, 8ACD, 8E, 8F, 8S heat transfer factor=0.0103535 Mwh/M 3 , 12A heat transfer factor =0.0115168Mwh/M 3 , 12i LPG heat transfer factor =0.01269546Mwh/kg, 12i Town Gas heat transfer factor =0.001 Mwh/Kwh
The above 2010-2011 statistics includes Natural Gas Consumption data from the new 12A_2.
Water Consumption
Total Water Consumption
(10000 tons/year)
1,254 1,212 1,146 997 1,030
Raw Material Consumption
HF total consumption (ton) 1,249 1,176 1,161 899 1,003
H 2 SO 4 total consumption (ton) 10,754 9,780 8,570 6,541 6,112
H 2 O 2 total consumption (ton) 2,904 2,542 2,444 1,870 1,943
NaOH total consumption (ton) 9,725 7,550 6,410 5,127 5,668
Waste
Total Waste Generation (k-ton) 24.05 22.86 23.10 17.97 18.98
Annual THC emission (kg) 23,737 19,611 18,047 15,042 12,583
Notes:Air pollution prevention management focuses on the reduction of THC use.
The company uses natural gas and a small amount of diesel. Estimated NOx emissions are about 70,000 Kg; SOx emissions less than 200KG in 2011.
Waste Water Volume
THC
Hsinchu Fabs (Taiwan) (m 3 /day) 12,158 12,038 12,473 11,994 12,088
Tainan Fabs (Taiwan) (m 3 /day) 6,651 5,818 4,188 3,548 3,713
Singapore Fabs (m 3 /day) 4,997 4,784 4,665 4,360 4,540
Note: UMC has installed effective waste water treatment facilities. Various types of waste water were appropriately treated and then discharged into the sewer system of government authorities. After further
treatment by the Science Park Administration, the treated waste water from UMC’s fabs in Hsinchu, Taiwan, is discharged into the Keya River; the treated waste water from UMC’s fab in Tainan, Taiwan, is
discharged into the Yanshuei River, and the treated waste water from UMC’s fab in Singapore is discharged into the South China Sea.
Total GHG Emission (Taiwan FABs)(1000 tons CO 2 equivalents)
Indirect Emission 924 1008 928 847 1037
Direct Emission 437 480 643 535 504
Total GHG Emission (Singapore FABs)(1000 tons CO 2 equivalents)
Indirect Emission 207 199 193 147 131
Direct Emission 124 115 137 95 84
Normalized GHG Emission(Taiwan and Singapore FABs)(1000 tons CO 2 equivalents)
Normalized emission 12 13 13 15 17
Indirect normalized emission 8 9 7 9 11
Direct normalized emission 4 4 5 6 6
UMC 2012 Corporate Social Responsibility Report
P.57