Comgás reported financial results for the first half of 2009, with growth in several key metrics. Residential customers grew 10.7% and cogeneration customers grew 15.8% compared to the first half of 2008. Gross and net sales revenue increased 10.9% and 9% respectively. Volume sold declined across most segments except residential and cogeneration. The company continued investing in expanding its natural gas network and adding new customers. Dividends of R$200 million were declared to be paid out over the remainder of 2009.

1. 111
COMPANHIA DE GÁS DE SÃO PAULO
COMGÁS
Financial Results
- June 2009 -

2. 222
Highlights: 1H09
Over 93 thousand residential units were added (UDAs), 12,9% of growth when compared to the
same period of 2008;
Growth of 10,7% on Residential market costumers when compared to the same period of 2008;
Growth of 15,8% on Cogeneration market costumers when compared to the same semester of
2008;
Restore on the Volume Sold in 2nd to the 1st quarter of 2009;
Gross and Net Sales Revenue increasing of 10,9% and 9,0%, respectively when compared to the 1st
semester of 2008.

3. 333
Comgás: Volume per Segment
In thousand Cu.M.
36,150 29,212 34,041 23.7% 6.2% 65,362 61,612 6.1%
23,423 21,806 24,742 7.4% -5.3% 45,229 48,117 -6.0%
798,173 702,347 1,004,294 13.6% -20.5% 1,500,520 1,969,766 -23.8%
2,232 18,250 72,414 -87.8% -96.9% 20,482 206,402 -90.1%
78,909 58,766 78,547 34.3% 0.5% 137,675 155,966 -11.7%
93,202 93,866 138,014 -0.7% -32,.% 187,068 273,081 -31.5%
1,032,089 924,247 1,352,052 11.7% -23.7% 1,956,336 2,714,944 -27.9%
11.3 10.2 14.1 10.8 13.9MM Cu.M./day*
NGV
Cogeneration
Thermal Generation
Industrial
Residential
Commercial
2Q09 2Q081Q09
D
2Q09/1Q09
D
2Q09/2Q08
1H09 1H08
D
1H09/1H08
* Excluding Thermal Generation

4. 444
Comgás: Meters by Segments
* UDAs (Householders).
D 12 months jun/09 mar/09 jun/08
D
jun09/mar09
D
jun09/jun08
63,203 651,911 635,104 588,708 Residential 2.6% 10.7%
92,941 816,212 789,751 723,271 Number of UDAs * 3.4% 12.9%
340 9,002 8,911 8,662 Commercial 1.0% 3.9%
(14) 991 993 1,005 Industrial -0.2% -1.4%
- 2 2 2 Thermal Generation 0.0% 0.0%
3 22 20 19 Cogeneration 10.0% 15.8%
(13) 383 392 396 NGV -2.3% -3.3%
63,519 662,311 645,422 598,792 2.6% 10.6%

5. 555
Volume per Segment
MM Cu.M.
2,714 1,956-27.9%
72.6%
76.7%
10.1%
9.6%
5.7%
7.0%
2.3%
3.3%
1.8%
2.3%
7.6% 1.0%
Industrial Residential Commercial NGV Cogeneration Thermal Generation
1H08 1H09

6. 666
Gross Revenue per Segment
R$ thousand
11.0%2,247,624 2,495,181
72.5% 73.8%
3.7%
4.0%
8.5%
8.3%
4.8%
8.4% 8.7%
4.2% 2.6% 0.3%
1H08 1H09
Industrial Residential Commercial NGV Cogeneration Thermal Generation

7. 777
Margin per Segment
R$ thousand
661,041 572,692-13.4%
65.2% 62.1%
18.6% 22.9%
7.0% 8.0%
3.7%
3.2%
5.2%
3.0% 0.1%1.0%
1H08 1H09
Industrial Residential Commercial NGV Cogeneration Thermal Generation

8. 888
Comgás: Financial Results
R$ thousand
2Q09 1Q09 2Q08 1H09 1H08
986,585 979,593 961,275 0.7% 2.6% Net Sales Revenue 1,966,178 1,804,040 9.0%
-727,918 -683,959 -629,653 6.4% 15.6% Cost of Goods Solds and/or Services Rendered -1,411,877 -1,166,347 21.1%
258,667 295,634 331,622 -12.5% -22.0% Gross Income 554,301 637,693 -13.1%
-104,831 -112,431 -119,002 -6.8% -11.9% Selling, General and Administrative Expenses -217,262 -215,158 1.0%
-40,051 -38,253 -33,158 4.7% 20.8% Depreciation and Amortization -78,304 -64,774 20.9%
-32,085 -37,055 -27,562 -13.4% 16.4% Financial Results -69,140 -55,086 25.5%
122,597 146,148 184,552 -16.1% -33.6% Operating Income 267,539 367,449 -27.2%
79,679 95,805 123,800 -16.8% -35.6% Net Income 175,484 243,689 -28.0%
193,887 221,456 245,272 -12.4% -21.0% EBITDA 415,343 487,309 -14.8%
D
2Q09/1Q09
D
2Q09/2Q08
D
1H09/1H08

9. 999
Comgás: Financial Indicators
Note:
Results achieved the period were annualized.
2Q09 1Q09 2Q08 1H09 1H08
9.9 9.2 8,3 Equity per Share ($) 9.9 8.3
0.7 0.8 1,0 Earnings per Share ($) 1.5 2.0
127.1% 147.1% 142,3% Net Debt per Equity (%) 127.1% 142.3%
1.8 1.8 1,4 Net Debt per EBITDA (x) 1.7 1.5
0.7 0.7 0,7 Current Ratio (x) 0.7 0.7
26.2% 30.2% 34,5% Gross Margin (%) 28.2% 35.3%
8.1% 9.8% 12,9% Net Margin (%) 8.9% 13.5%
19.7% 22.6% 25,6% EBITDA Margin (%) 21.1% 27.0%
8.5% 9.8% 14,2% Return on Assets (%) 9.4% 13.9%
6.7% 8.7% 12,4% Return on Equity (%) 29.7% 48.7%

10. 101010
Dividends Paid
2009: Dividends of R$ 200 million declared to be paid in 3 installments during the year:
June 31st, 2009: R$ 100 million (already paid)
August 31st, 2009: R$ 50 million
October 30th, 2009: R$ 50 million
R$ MM
2001 2002 2003 2004 2005 2006 2007 2008 1H09
200*
275
334330
303
2527
11 16
53%75%77%95%10%26%17% 15%

11. 111111
100
229
200
230
276
474
426
397 403
187
2000 2001 2002 2003 2004 2005 2006 2007 2008 1H09
Investments – 2000 to 1H09
Over R$ 2.9 billion invested in the period
Network Extension:
Jun/08: 5,464 Kms
Jun/09: 5,940 Kms
D: 476 Kms
Main projects:
São Bernardo do Campo
Santos
Campinas
UDA’ s Added:
92.941
CAPEX
R$ MiM
187

12. 121212
Comgás: Regulatory Current Account balance evolution
Balance of Gas bill receivables – Cash Effect
D = 61
D = 204
R$ MM
2Q091Q09

13. 131313
Investor Relations
Companhia de Gás de São Paulo – COMGÁS
www.comgas.com.br/en/investors
Roberto Lage
CFO and IRO
Paulo Polezi
Treasury and Investor Relations
Renata Oliva
Investor Relations
Rua Olimpíadas, nº 205, 10º andar - Vila Olímpia - CEP 04551-000 / São Paulo - SP - Brazil