Companies in the infrastructure, food and beverage, and information technology sectors have collectively reported year-on-year growth in operating profits of over 100 percent, the Securities Times reported on Tuesday.

By March 25, 629 companies had released their annual reports detailing total operating revenue of 18.85 trillion yuan ($3.03 trillion); total profit for the companies reached 1.8 trillion yuan, Securities Times said.

Twenty companies in the infrastructure sector reported total operating revenue of 196 billion yuan with 15.4 billion yuan of operating profit in 2012, a 181.73 percent year-on-year increase.

Twelve companies in the food and beverage sector reported total operating revenue of 21.1 billion yuan, with operating profit of 1.68 billion yuan in 2012, up 111.35 percent year from 2011.

Among information technology facilities makers, 18 companies reported total operating revenue of 24 billion yuan with operating profit of 1.5 billion yuan in 2012, a 103 percent year-on-year increase.

Analysts said investors are likely to focus on long-term growth industries, which most support the state policies of urbanization and industrial upgrade.