In recent years, with the country's emphasis on environmental protection, various policies have been issued continuously, making the environmental protection industry grow rapidly. Sewage treatment, as one of the three major pollution prevention, has ushered in the golden age of development. It is reported that in 2015, the cost and profit margin of China's sewage industry was 9.74%, and the capital preservation and appreciation rate was 142.87%, which has maintained a strong growth trend.
From the 1960s to the 1970s, China began to invest in the construction of a number of sewage treatment facilities and sewage treatment plants. Under the planned economy system, all sewage treatment plants are state-owned institutions with poor operating capabilities. Most of the sewage treatment plants are first-class treatment, and there is an extreme shortage of professionals in the operation of sewage treatment plants.
From the perspective of profitability, the profitability of China's sewage treatment industry is relatively strong. In 2015, the cost and profit margin of China's sewage industry was 9.74%, the capital preservation and appreciation rate was 142.87%, and the total return on assets was 3.30%.
Overall, the profitability of China's wastewater treatment industry has been declining after 2011. In 2015, the gross profit margin of China's sewage treatment industry reached 24.75% and the sales profit margin reached 17.93%.