29.9 percent, and electricity was 12.55 billion kilowatt hours, up 27.7 percent. In 2017, industrial enterprises above the scale of Yangquan achieved 73.91 billion yuan in main business income, an increase of 21.3 percent, and 4.01 billion yuan in profits and taxes, an increase of 91 percent. Of these, the total profits were-1.64 billion yuan, 180 million yuan more than the same period last year. The tax reached 5.65 billion yuan, an increase of 44.1 per cent. The "two funds" of enterprises occupied 14.47 billion yuan, down 9.7 percent, of which accounts receivable totaled 11.81 billion yuan, down 14.3 percent, and finished goods totaled 2.66 billion yuan, an increase of 18.8 percent. There were 54 loss-making enterprises, with a loss of 43.9 percent, and a loss of 3.41 billion yuan, an increase of 30.7 percent. In 2017, the added value of the construction industry in Yangquan reached 5.08 billion yuan, an increase of 6.2 per cent. The total profits of general contracting and professional contracting enterprises with construction qualifications were 30 million yuan, down 83.9 percent, and the tax paid was 460 million yuan, an increase of 96.7 percent. the service sector; the tertiary industry. In 2017, investment in real estate development in Yangquan City totaled 3.03 billion yuan, down 52.7 percent. According to the purpose of the project, Society Science In 2017, the number of patent applications in Yangquan City was 1107, a decrease of 21.6 percent, of which the number of invention patent applications was 439, an increase of 7.6 percent. The number of patents granted in the city was 360, a decrease of 5.7 percent, of which the number of patents granted for invention was 18, a decrease of 21.7 percent. A total of 41 scientific research achievements at or above the municipal level were achieved in the whole year, including 37 at the municipal level and 4 at the provincial level. In the whole year, a total of 154technical contracts were signed, with a total transaction value of 250 million yuan. In 2001, 26 scientific and technological achievements were newly registered. Won 4 provincial science and technology awards. There are 1 enterprise technology center, 10 provincial enterprise technology center and 30 municipal enterprise technology center. There are 42 high-tech enterprises in the city. By the end of 2017, there were 2 ordinary colleges and universities in Yangquan City, with 67000 people trained in practical skills for