(1) Increase in sales volume of natural gas as compared with the same period of 2021

During the Reporting Period, the Group’s total transmission volume of the natural gas business was 4.501 billion cubic meters, representing an increase of 8.27% as compared with the same period of 2021, among which, the sales volume amounted to 3.885 billion cubic meters, representing an increase of 2.01% as compared with the same period of 2021, including (i) wholesale volume amounted to 1.957 billion cubic meters, representing a decrease of 5.9% as compared with the same period of 2021; (ii) retail sales volume amounted to 1.838 billion cubic meters, representing an increase of 12.6% as compared with the same period of 2021; (iii) sales volume of CNG amounted to 84 million cubic meters, representing an increase of 1.6% as compared with the same period of 2021; (iv) sales volume of LNG amounted to 5 million cubic meters, representing a decrease of 62.3% as compared with the same period of 2021; and the gas transmission volume amounted to 616 million cubic meters, representing an increase of 76.6% as compared with the same period of 2021.

(2) Active promotion of the construction of infrastructural projects

The Group’s natural gas pipelines increased by 742.49 kilometers in 2022. As at 31 December 2022, the Group operated pipelines with a total of 8,347.23 kilometers, including 1,260.67 kilometers of long-distance transmission pipelines and 7,086.56 kilometers of city gas pipelines; and the Group operated a total of 31 distribution stations and 19 gate stations.

During the Reporting Period, the Jingshihan Dual Track Pipeline Project ( “京石邯” 復綫項目 ) was put into operation; Central Hebei Pipeline Network Phase IV Project ( 冀中管網四期工程 ), Qinhuangdao-Fengnan Coastal Gas Transmission Pipeline Project ( 秦皇島 - 豐南沿海輸氣管道工程 ), and the South Baoding Connection Line Project of Sinopec Erdos-Anping-Cangzhou Gas Pipeline and Beijing-Handan Gas Pipeline ( 鄂安滄與京邯線保定南部聯絡線工程項目 ) were progressing smoothly. The pouring of outer tank of LNG storage tank in Beijing-Handan Pipeline LNG Gas Storage Peak Capacity Station Project Phase I Project ( 京邯線 LNG 儲氣調峰站一期工程 ) has been completed, while the inner tank construction has been completed by 96%, and the process area has been completed by 96% against the overall progress.

The Tangshan LNG Phase I Project ( 唐山 LNG 項目一階段工程 ) has been basically completed, among which the Tangshan LNG Project Phase I Auxiliary Wharf Project (wharf #3) has been completed, and the installation of 3#, 4#, 7# and 8# storage tanks of the receiving station phase I project has been completed; the phase II project in relation to topping up of 1#, 2#, 5# and 6# storage tanks has been completed, and construction of bearing platform of four storage tanks, i.e. 9#, 10#, 15# and 16#, have been completed. Outbound pipelines (Caofeidian-Baodi section) and outbound pipelines (Baodi-Yongqing section) projects of the Tangshan LNG Receiving Station have been completed substantially.

(3) Continuous exploration of midstream and downstream natural gas markets

During the Reporting Period, leveraging on its newly operating pipelines, the Group vigorously developed its end user base of natural gas and resulted in an increase of 78,112 customers. As at 31 December 2022, the Group had an aggregate of 559,048 customers.

During the Reporting Period, the acquisition of 80% equity in Shijiazhuang Jiecheng Natural Gas Trading Co., Ltd. ( 石家莊市捷誠天然氣貿易有限公司 ) was completed, thus controlling the equity interests in the operation of some gas markets, including the eastern extended area of Shijiazhuang Economic Development Zone and Gaocheng District; the acquisition of 51% equity in Shijiazhuang Xinao Urban Gas Development Co., Ltd. ( 石家莊新奧城市燃氣發展有限公司 ) was completed; thus controlling the equity interests in the operation of third-ring pipelines in Shijiazhuang, and with its gas supply covering the area of Luquan District and Luancheng District in Shijiazhuang.

(4) Further improvement of transmission network

During the Reporting Period, the Group actively participated in the construction of gas transmission pipelines and made efforts to further improve the midstream gas transmission network. Bidding of the Beijing-Handan Natural Gas Pipeline (Luancheng section) Relocation Project ( 京邯線天然氣管道（欒城段）遷改項目 ), Southeast Cangzhou Natural Gas (sourced from Erdos-Anping-Cangzhou Gas Pipeline) Utilization Project ( 滄州東南天然氣（鄂安滄氣源）利用工程 ), and Luquan-Jingxing Gas Transmission Pipeline Project ( 鹿泉 - 井陘輸氣管道工程 ) have been completed, and the preparatory work prior to commencement of construction is under way; approval procedures for Baoding Qingyuan-Cangzhou Suning Pipeline Project ( 保定清苑 - 滄州肅寧管線項目 ) and Qinfeng Pipeline Qinxi Industrial Park Branch Project ( 秦豐管線秦西工業園支線項目 ) are currently in progress.

(5) Robust operation of urban CNG and LNG businesses

During the Reporting Period, the Group operated its urban CNG and LNG businesses in a steady manner with no additional operating CNG secondary filling station. As at 31 December 2022, the Group operated a total of 6 CNG primary filling stations, 3 CNG secondary filling stations, 3 LNG refilling stations and 2 L-CNG joint filling stations.