OVERSEAS REGULATORY ANNOUNCEMENT ISSUE OF SUPER SHORT-TERM DEBENTURES

This announcement is made pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the "Listing Rules").

As resolved at the 2020 annual general meeting of Huaneng Power International, Inc. (the "Company") held on 22 June 2021, the Company has been given a mandate to issue super short-term debentures (in either one or multiple tranches on rolling basis) with a principal amount of up to RMB30 billion (which means that the outstanding principal balance of the super short-term debentures in issue shall not exceed RMB30 billion at any time within the period as prescribed therein) within the period from approval obtained at 2020 annual general meeting to the conclusion of the 2021 annual general meeting.

The Company has recently completed the issue of the thirteenth tranche of the Company's super short- term debentures for 2021 (the "Debentures"). The total issuing amount was RMB1.5 billion with a maturity period of 32 days whereas the unit face value is RMB100 and the interest rate is 2.05%.

Hengfeng Bank Co., Ltd. acts as the lead underwriter to form the underwriting syndicate for the Debentures, which were placed through book-building and issued in the domestic bond market among banks. The proceeds from the Debentures will be used to supplement the working capital of the headquarters of the Company, adjust debts structure and repay bank loans and the debt due.

The relevant documents in respect of the Debentures are posted on China Money and Shanghai Clearing House at websites of www.chinamoney.com.cn and www.shclearing.com, respectively.

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The Debentures do not constitute any transaction under Chapter 14 and Chapter 14A of the Listing Rules.

By Order of the Board
Huaneng Power International, Inc.
Huang Chaoquan
Company Secretary

As at the date of this announcement, the directors of the Company are:

Zhao Keyu (Executive Director) Xu Mengzhou (Independent Non-executive Director)
Zhao Ping (Executive Director) Liu Jizhen (Independent Non-executive Director)
Huang Jian (Non-executive Director) Xu Haifeng (Independent Non-executive Director)
Wang Kui (Non-executive Director) Zhang Xianzhi (Independent Non-executive Director)
Lu Fei (Non-executive Director) Xia Qing (Independent Non-executive Director)
Teng Yu (Non-executive Director)
Mi Dabin (Non-executive Director)
Cheng Heng (Non-executive Director)
Li Haifeng (Non-executive Director)
Lin Chong (Non-executive Director)

Beijing, the PRC

19 October 2021

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Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

ANNOUNCEMENT ON DOMESTIC ELECTRICITY SOLD IN THE FIRST THREE QUARTERS OF 2021

This announcement is made pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

According to the preliminary statistics of Huaneng Power International, Inc., (the "Company"), in the third quarter of 2021, the electricity sold by the Company's operating power plants in China, on consolidated basis, amounted to 115.188 billion kWh, representing an increase of 10.98% compared to the same period last year. For the first three quarters of 2021, the electricity sold by the Company's operating power plants in China, on consolidated basis, reached a total of 323.115 billion kWh, representing an increase of 17.11% over the same period last year. The average on-grid electricity settlement price for the Company's operating power plants in China for the first three quarters of 2021 was RMB417.79 per MWh, representing an increase of 1.28% over the same period last year. For the first three quarters of 2021, the Company's market based electricity sold ratio was 59.99%, representing an increase of 3.05 percentage points over the same period last year.

The increase in the Company's power generation was mainly attributable to the following factors:

1. In the first three quarters, the electricity consumption of the whole society maintained a high level of operation, driving the power generation to increase significantly year-on-year. Among them, the power generation of the power plants in the regions of Chongqing, Guangdong, Zhejiang, Shanghai, Fujian, Hunan, and Jiangsu increased significantly year-on-year.
2. During the peak summer period, the thermal power load maintained rapid growth, and the Company's thermal power unit utilization hours increased significantly, which further accelerated the Company's year-on-year growth in power generation.

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

Electricity Sold
Region July to September 2021 Change January to September 2021 Change
Heilongjiang Province 3.858 14.30 % 10.046 3.52 %
Coal-fired 3.576 13.85 % 9.088 2.76 %
Wind-power 0.252 24.74 % 0.860 13.17 %
PV 0.030 -6.93 % 0.098 -2.89 %
Jilin Province 1.828 -38.76 % 6.547 -17.15 %
Coal-fired 1.501 -43.32 % 5.237 -23.59 %
Wind-power 0.158 -24.98 % 0.825 10.48 %
Hydro-power 0.037 158.62 % 0.054 -3.02 %
PV 0.047 -17.66 % 0.186 108.57 %
Biomass power 0.085 53.85 % 0.244 55.64 %
Liaoning Province 5.751 15.39 % 14.726 17.05 %
Coal-fired 5.647 89.20 % 14.291 17.69 %
Wind-power 0.060 -9.32 % 0.299 7.87 %
Hydro-power 0.009 -53.43 % 0.022 -44.36 %
PV 0.035 -7.14 % 0.115 -5.88 %
Inner Mongolia 0.114 183.10 % 0.355 142.26 %
Wind-power 0.114 183.10 % 0.355 142.26 %
Hebei Province 2.648 -7.98 % 8.024 -1.12 %
Coal-fired 2.550 -8.37 % 7.654 -1.34 %
Wind-power 0.072 -10.15 % 0.32 2.53 %
PV 0.025 82.40 % 0.048 11.29 %
Gansu Province 2.918 38.90 % 10.524 15.79 %
Coal-fired 2.335 57.49 % 8.674 19.50 %
Wind-power 0.583 -5.69 % 1.850 1.06 %
Ningxia 0.007 6.54 % 0.018 -4.69 %
PV 0.007 6.54 % 0.018 -4.69 %
Beijing 2.376 20.91 % 6.466 10.23 %
Coal-fired - - 0.648 3.60 %
Combined Cycle 2.376 20.91 % 5.818 11.03 %
Tianjin 1.835 22.02 % 4.716 8.05 %
Coal-fired 1.466 30.25 % 3.699 11.67 %
Combined Cycle 0.366 -0.88 % 1.006 -3.33 %

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Electricity Sold
Region July to September 2021 Change January to September 2021 Change
PV 0.004 -60.94 % 0.011 -2.57 %
Shanxi Province 2.430 -11.13 % 6.953 -1.14 %
Coal-fired 2.159 -15.20 % 4.938 -9.18 %
Combined Cycle 0.012 532.35 % 1.187 -1.23 %
Wind-power 0.052 - 0.192 -
PV 0.207 10.81 % 0.637 61.40 %
Shandong Province 21.956 4.07 % 59.848 10.90 %
Coal-fired 21.536 3.19 % 58.282 9.82 %
Wind-power 0.219 138.66 % 0.975 96.72 %
PV 0.129 -4.84 % 0.400 -0.50 %
Biomass power 0.073 - 0.192 -
Henan Province 6.012 5.40 % 16.719 13.41 %
Coal-fired 5.181 -2.19 % 13.908 2.95 %
Combined Cycle 0.120 -31.39 % 0.210 -62.58 %
Wind-power 0.704 213.29 % 2.582 296.17 %
PV 0.006 -9.33 % 0.019 -0.30 %
Jiangsu Province 11.370 9.01 % 31.781 19.74 %
Coal-fired 8.683 0.94 % 24.022 10.61 %
Combined Cycle 1.654 29.73 % 4.606 53.33 %
Wind-power 0.964 96.07 % 2.951 73.43 %
PV 0.069 12.45 % 0.202 70.89 %
Shanghai 5.236 21.33 % 15.055 26.97 %
Coal-fired 4.810 24.94 % 14.000 30.72 %
Combined Cycle 0.418 -9.12 % 1.031 -9.59 %
PV 0.008 37.00 % 0.023 279.26 %
Chongqing 3.028 44.40 % 9.533 53.42 %
Coal-fired 2.501 59.62 % 7.535 51.66 %
Combined Cycle 0.443 -0.25 % 1.787 69.71 %
Hydro-power 0.084 -2.40 % 0.211 9.82 %
Zhejiang Province 9.450 35.35 % 24.289 33.08 %
Coal-fired 9.096 35.96 % 23.366 32.02 %
Combined Cycle 0.339 22.53 % 0.880 72.95 %
PV 0.016 -0.53 % 0.042 -3.28 %

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Electricity Sold
Region July to September 2021 Change January to September 2021 Change
Hubei Province 3.780 11.17 % 12.146 17.81 %
Coal-fired 3.511 11.24 % 11.405 18.54 %
Wind-power 0.148 33.52 % 0.479 16.10 %
Hydro-power 0.114 -9.61 % 0.245 -4.96 %
PV 0.006 1.37 % 0.017 -2.56 %
Hunan Province 3.547 41.09 % 8.553 24.42 %
Coal-fired 3.340 44.39 % 7.828 28.00 %
Wind-power 0.139 6.96 % 0.481 5.71 %
Hydro-power 0.052 -8.73 % 0.207 -23.03 %
PV 0.016 13.40 % 0.037 5.81 %
Jiangxi Province 6.104 1.64 % 16.290 11.48 %
Coal-fired 5.763 0.34 % 15.336 10.69 %
Wind-power 0.202 6.27 % 0.635 2.54 %
PV 0.139 93.44 % 0.319 130.92 %
Anhui Province 1.463 23.27 % 4.240 18.21 %
Coal-fired 1.231 20.25 % 3.515 7.84 %
Wind-power 0.179 96.21 % 0.603 152.42 %
PV 0.053 -26.61 % 0.122 37.93 %
Fujian Province 6.637 10.57 % 15.531 26.53 %
Coal-fired 6.633 10.57 % 15.521 26.54 %
PV 0.004 15.03 % 0.010 6.72 %
Guangdong Province 8.078 11.18 % 24.449 44.81 %
Coal-fired 7.050 7.91 % 21.275 32.04 %
Combined Cycle 1.021 40.66 % 3.155 319.07 %
PV 0.007 8.86 % 0.019 8.68 %
Guangxi Province 0.162 -10.62 % 0.545 18.52 %
Combined Cycle 0.113 -12.44 % 0.326 6.38 %
Wind-power 0.049 -6.09 % 0.219 42.71 %
Yunnan Province 0.897 -2.21 % 6.223 20.18 %
Coal-fired 0.804 1.62 % 5.860 24.11 %
Wind-power 0.070 -33.11 % 0.339 -21.57 %
Hydro-power 0.022 7.51 % 0.024 -1.14 %

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Electricity Sold
Region July to September 2021 Change January to September 2021 Change
Guizhou Province 0.219 196.23 % 0.397 71.85 %
Wind-power 0.038 -17.49 % 0.140 -21.37 %
PV 0.182 536.67 % 0.258 380.45 %
Hainan Province 3.484 14.47 % 9.140 0.30 %
Coal-fired 3.312 14.55 % 8.572 -1.92 %
Combined Cycle 0.115 9.62 % 0.368 76.14 %
Wind-power 0.009 4.71 % 0.048 -13.63 %
Hydro-power 0.018 121.91 % 0.067 163.77 %
PV 0.030 -1.48 % 0.085 2.56 %
Total 115.188 10.98 % 323.115 17.11 %

For the third quarter of 2021, the power generation of Tuas Power Limited in Singapore, which is wholly-owned by the Company, accounted for a market share of 18.7% in Singapore, representing a decrease of 2.9 percentage points compared to the same period last year. In the first three quarters of 2021, the accumulated power generation accounted for a market share of 19.9%, representing a decrease of 1.6 percentage points compared to the same period last year.

In the third quarter of 2021, the new generation units put into operation were as follows:

(Unit: MW)
Type of Generation Unit Controlled installed capacity Equity-based installed capacity
Wind-power 583.6 583.6
PV 278 278
Total 861.6 861.6

Meanwhile, the installed capacity of certain power plants invested by the Company changed in the third quarter of 2021.

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Based on the above, as of 30 September 2021, the Company had a controlled installed capacity of 115,014MW and an equity-based installed capacity of 101,388MW.

By order of the Board
Huaneng Power International, Inc.
Huang Chaoquan
Company Secretary

As of the date of the announcement, the directors of the Company are:

Zhao Keyu (Executive Director) Xu Mengzhou (Independent Non-executive Director)
Zhao Ping (Executive Director) Liu Jizhen (Independent Non-executive Director)
Huang Jian (Non-executive Director) Xu Haifeng (Independent Non-executive Director)
Wang Kui (Non-executive Director) Zhang Xianzhi (Independent Non-executive Director)
Lu Fei (Non-executive Director) Xia Qing (Independent Non-executive Director)
Teng Yu (Non-executive Director)
Mi Dabin (Non-executive Director)
Cheng Heng (Non-executive Director)
Li Haifeng (Non-executive Director)
Lin Chong (Non-executive Director)

Beijing, the PRC

19 October 2021

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Huaneng Power International Inc. published this content on 19 October 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 19 October 2021 10:11:03 UTC.