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Consolidated Statement of Changes in Equity ¥ in Thousands, $ in Thousands | CNY (¥) | USD ($) | Issued capital [Member] CNY (¥) | Issued capital [Member] USD ($) | Preference share [member] CNY (¥) | Statutory reserves [Member] CNY (¥) | Statutory reserves [Member] USD ($) | Capital reserves [Member] CNY (¥) | Capital reserves [Member] USD ($) | Retained earnings [member] CNY (¥) | Retained earnings [member] USD ($) | Foreign currency translation reserve [member] CNY (¥) | Foreign currency translation reserve [member] USD ($) | Performance shares reserves [member] CNY (¥) | Performance shares reserves [member] USD ($) | Premium paid for acquisition of non-controlling interests [member] CNY (¥) | Premium paid for acquisition of non-controlling interests [member] USD ($) | Attributable to the equity holders of the parent [Member] CNY (¥) | Attributable to the equity holders of the parent [Member] USD ($) | Non-controlling interests [member] CNY (¥) | Non-controlling interests [member] USD ($) | Fair Value [member] CNY (¥) | Fair Value [member] USD ($)
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | ¥ 10,961,904 |  | ¥ 2,081,138 |  | ¥ 21 | ¥ 301,026 |  | ¥ 30,704 |  | ¥ 5,996,120 |  | ¥ (82,939) |  | ¥ 19,758 |  | ¥ (11,541) |  | ¥ 8,334,287 |  | ¥ 2,627,617 |  |  |
Statement [LineItems] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of adoption of IFRS 9 | (137,277) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (104,893) |  | (32,384) |  | ¥ (104,893) |
Profit for the year | 974,400 |  |  |  |  |  |  |  |  | 695,266 |  |  |  |  |  |  |  | 695,266 |  | 279,134 |  |  |
Other comprehensive income for the year, net of tax | 81,891 |  |  |  |  |  |  |  |  |  |  | 43,724 |  |  |  |  |  | 68,669 |  | 13,222 |  | 24,945 |
Total comprehensive income for the year | 1,056,291 |  |  |  |  |  |  |  |  | 695,266 |  | 43,724 |  |  |  |  |  | 763,935 |  | 292,356 |  | 24,945 |
Transactions with owners, recorded directly in equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared to non-controlling interests | (135,905) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (135,905) |  |  |
Dividends declared and paid | (597,459) |  |  |  |  |  |  |  |  | (597,459) |  |  |  |  |  |  |  | (597,459) |  |  |  |  |
Transfer to statutory reserves |  |  |  |  |  | 1,378 |  |  |  | (1,378) |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preference shares |  |  |  |  | ¥ (21) |  |  |  |  |  |  |  |  |  |  |  |  | (21) |  | 21 |  |  |
Balance at Dec. 31, 2018 | 11,147,554 |  | 2,081,138 |  |  | 302,404 |  | 30,704 |  | 6,092,549 |  | (39,215) |  | 19,758 |  | (11,541) |  | 8,395,849 |  | 2,751,705 |  | (79,948) |
Statement [LineItems] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Profit for the year | 860,700 |  |  |  |  |  |  |  |  | 604,914 |  |  |  |  |  |  |  | 604,914 |  | 255,786 |  |  |
Other comprehensive income for the year, net of tax | 11,517 |  |  |  |  |  |  |  |  |  |  | 3,124 |  |  |  |  |  | 5,455 |  | 6,062 |  | 2,331 |
Total comprehensive income for the year | 872,217 |  |  |  |  |  |  |  |  | 604,914 |  | 3,124 |  |  |  |  |  | 610,369 |  | 261,848 |  | 2,331 |
Transactions with owners, recorded directly in equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared to non-controlling interests | (207,514) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (207,514) |  |  |
Dividends declared and paid | (238,758) |  |  |  |  |  |  |  |  | (238,758) |  |  |  |  |  |  |  | (238,758) |  |  |  |  |
Acquisition of non-controlling interests | (114) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 69 |  | 69 |  | (183) |  |  |
Transfer to statutory reserves |  |  |  |  |  | 1,903 |  |  |  | (1,903) |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Dec. 31, 2019 | 11,573,385 |  | 2,081,138 |  |  | 304,307 |  | 30,704 |  | 6,456,802 |  | (36,091) |  | 19,758 |  | (11,472) |  | 8,767,529 |  | 2,805,856 |  | (77,617) |
Statement [LineItems] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Profit for the year | 779,326 | $ 120,427 |  |  |  |  |  |  |  | 548,903 |  |  |  |  |  |  |  | 548,903 |  | 230,423 |  |  |
Other comprehensive income for the year, net of tax | (66,616) | (10,294) |  |  |  |  |  |  |  |  |  | (53,834) |  |  |  |  |  | (55,937) |  | (10,679) |  | (2,103) |
Total comprehensive income for the year | 712,710 | 110,133 |  |  |  |  |  |  |  | 548,903 |  | (53,834) |  |  |  |  |  | 492,966 |  | 219,744 |  | (2,103) |
Transactions with owners, recorded directly in equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared to non-controlling interests | (207,514) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (207,514) |  |  |
Dividends declared and paid | (245,871) |  |  |  |  |  |  |  |  | (245,871) |  |  |  |  |  |  |  | (245,871) |  |  |  |  |
Transfer to statutory reserves |  |  |  |  |  | 2,858 |  |  |  | (2,858) |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at Dec. 31, 2020 | ¥ 11,832,710 | $ 1,828,490 | ¥ 2,081,138 | $ 321,595 |  | ¥ 307,165 | $ 47,466 | ¥ 30,704 | $ 4,745 | ¥ 6,756,976 | $ 1,044,145 | ¥ (89,925) | $ (13,896) | ¥ 19,758 | $ 3,053 | ¥ (11,472) | $ (1,773) | ¥ 9,014,624 | $ 1,393,016 | ¥ 2,818,086 | $ 435,474 | ¥ (79,720) | $ (12,319)

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