Chilean water utility Essbio, which serves central-south region VIII, posted 1.29bn pesos (US$2.7mn) in third quarter losses, compared to 1.41bn pesos in earnings recorded in 3Q11.
Results are explained by tax-related expenses - the result of the tax reform the government launched to boost public education.
Revenues for the quarter were up 16.1% to 25.8bn pesos, according to Essbio's latest financial statement sent to securities and insurance regulator SVS.
For the first nine months of the year, Essbio saw profits fall 11.1% to 7.56bn pesos.
At the end of September, Ebitda was 40.5bn pesos, up 0.2% from the year-ago period.
Fellow Chilean water utility Esval, which serves central region V, posted 4.30bn pesos in third quarter losses, compared to 1.92bn pesos in earnings in 3Q11.
The results were also impacted by changes in the corporate tax rate.
For the first nine months of the year, Esval saw earnings decrease 9.7% to 9.53bn pesos, the company said in its latest financial statements sent to securities and insurance regulator SVS.
Third quarter revenue was up 11.4% to 28.3bn pesos, while for January-September, revenue increased 12.8% to 97.1bn pesos.
Esval is also controlled by OTPP. For the results, in Spanish, click here
Finally, Chilean water utility Aguas del Valle, which operates in central-northern region IV, posted 227mn pesos in third quarter profits, down 79.5% from the year-ago period.
For January-September, profits were up 15.2% to 5.27bn pesos, according to the latest financial figures filed with SVS.
Revenue for the quarter increased 14.9% to 7.27bn pesos.
Esval controls 99% of Aguas del Valle.
Click here for the results, in Spanish.