Huaneng Power International, Inc. Domestic Electricity Sold in the First Half of 2021 Increased by 20.80% Year-on-year

BEIJING, July 12, 2021

According to the preliminary statistics, for the second quarter of 2021, the Company's total electricity sold by power plants within China on consolidated basis amounted to 102.917 billion kWh, representing an increase of 12.51% over the same period last year. In the first half of 2021, the Company's total electricity sold by power plants within China on consolidated basis amounted to 207.926 billion kWh, representing an increase of 20.80% over the same period last year. In the first half of 2021, the Company's average on-grid electricity settlement price for its power plants within China amounted to RMB418.81 per MWh, representing an increase of 0.52% over the same period last year. In the first half of 2021, the proportion of the Company's market based electricity sold amounted to 61.09%, representing an increase of 11.20 percentage points over the same period last year.

The increase in the Company's electricity sold was mainly attributable to:

In the first half of 2021, the demand for electricity in the whole society has grown rapidly, driving the power generation to increase significantly year-on-year. Of the 26 regions in which the Company operates, 22 regions have achieved positive year-on-year growth in power generation, among which 10 regions including Guangdong, Chongqing, Fujian, Zhejiang, Jiangsu, and Shanghai have increased by more than 20%.

The electricity sold (in billion kWh) of the Company, by regions, is listed below: