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Financial risk management objectives and policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Statement [LineItems] |
Summary of Information about Credit Risk on Trade Receivables using Provision Matrix | Set out below is the information about the credit risk exposure on the Group’s trade receivables using a provision matrix:
|  |  |  |  | Trade receivables |
|  |  |  |  |  |  |  | Days past due |
As of December 31, 2019 |  | Total |  |  | Current |  |  | 0 – 90 days |  |  | 91-180 days |  |  | 181-365 days |  |  | >365 days |
|  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |
Expected credit loss rate |  |  | 7.2 | % |  |  | — |  |  |  | 6.9 | % |  |  | 6.2 | % |  |  | 10.9 | % |  |  | 70.7 | %
Estimated total gross carrying amount at default |  |  | 794,678 |  |  |  | 601,094 |  |  |  | 61,917 |  |  |  | 24,409 |  |  |  | 40,213 |  |  |  | 67,045 |
Expected credit loss |  |  | 57,611 |  |  |  | — |  |  |  | 4,283 |  |  |  | 1,513 |  |  |  | 4,386 |  |  |  | 47,429 |
|  |  |  |  | Trade receivables |
|  |  |  |  |  |  |  | Days past due |
As of December 31, 2020 |  | Total |  |  | Current |  |  | 0 – 90 days |  |  | 91-180 days |  |  | 181-365 days |  |  | >365 days |
|  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |
Expected credit loss rate |  |  | 13.1 | % |  |  | — |  |  |  | 4.2 | % |  |  | 4.9 | % |  |  | 7.8 | % |  |  | 72.8 | %
Estimated total gross carrying amount at default |  |  | 332,567 |  |  |  | 126,706 |  |  |  | 91,233 |  |  |  | 29,675 |  |  |  | 36,413 |  |  |  | 48,540 |
Expected credit loss |  |  | 43,519 |  |  |  | — |  |  |  | 3,860 |  |  |  | 1,451 |  |  |  | 2,852 |  |  |  | 35,356 |
Maturity Profile of Financial Assets and Liabilities Based on Contractual Undiscounted Payments | The table below summarizes the maturity profile of the Group’s financial assets and liabilities based on contractual undiscounted payments.
|  | 1 year or less |  |  | 2 to 5 years |  |  | Total |
As of December 31, 2019 |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |
Financial assets |  |  |  |  |  |  |  |  |  |  |  |
Trade and bills receivables |  |  | 7,742,301 |  |  |  | — |  |  |  | 7,742,301 |
Other receivables, excluding tax recoverable |  |  | 161,292 |  |  |  | — |  |  |  | 161,292 |
Cash and bank balances |  |  | 6,390,918 |  |  |  | — |  |  |  | 6,390,918 |
Quoted equity securities |  |  | 9,235 |  |  |  | — |  |  |  | 9,235 |
|  |  | 14,303,746 |  |  |  | — |  |  |  | 14,303,746 |
Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |
Loans and borrowings |  |  | 2,085,456 |  |  |  | — |  |  |  | 2,085,456 |
Trade and other payables (Note 22) |  |  | 8,408,058 |  |  |  | 176,302 |  |  |  | 8,584,360 |
Lease liabilities |  |  | 29,838 |  |  |  | 35,263 |  |  |  | 65,101 |
Derivative not designated as hedges – foreign exchange forward contract |  |  | 999 |  |  |  | — |  |  |  | 999 |
|  |  | 10,524,351 |  |  |  | 211,565 |  |  |  | 10,735,916 |
|  | 1 year or less |  |  | 2 to 5 years |  |  | More than 5 years |  |  | Total |  |  | Total |
As of December 31, 2020 |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
Financial assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trade and bills receivables |  |  | 8,082,391 |  |  |  | — |  |  |  | — |  |  |  | 8,082,391 |  |  |  | 1,248,959 |
Other receivables, excluding tax recoverable |  |  | 76,195 |  |  |  | — |  |  |  | — |  |  |  | 76,195 |  |  |  | 11,774 |
Cash and bank balances |  |  | 6,307,538 |  |  |  | 140,000 |  |  |  | — |  |  |  | 6,447,538 |  |  |  | 996,328 |
Quoted equity securities |  |  | 6,258 |  |  |  | — |  |  |  | — |  |  |  | 6,258 |  |  |  | 967 |
|  |  | 14,472,382 |  |  |  | 140,000 |  |  |  | — |  |  |  | 14,612,382 |  |  |  | 2,258,028 |
Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans and borrowings |  |  | 1,753,142 |  |  |  | 524,275 |  |  |  | — |  |  |  | 2,277,417 |  |  |  | 351,926 |
Trade and other payables (Note 22) |  |  | 10,025,069 |  |  |  | 191,563 |  |  |  | — |  |  |  | 10,216,632 |  |  |  | 1,578,760 |
Lease liabilities |  |  | 24,313 |  |  |  | 22,761 |  |  |  | 325 |  |  |  | 47,399 |  |  |  | 7,324 |
|  |  | 11,802,524 |  |  |  | 738,599 |  |  |  | 325 |  |  |  | 12,541,448 |  |  |  | 1,938,010 |
Exposures to Foreign Currency | The Group’s exposures to foreign currency are as follows:
|  | 31.12.2019 |
|  | Singapore Dollar |  |  | Euro |  |  | US Dollar |  |  | Renminbi |  |  | Others |
|  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |
Quoted equity securities |  |  | 9,235 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Trade and other receivables |  |  | 607 |  |  |  | 414 |  |  |  | 7,624 |  |  |  | 658 |  |  |  | — |
Cash and bank balances |  |  | 228,589 |  |  |  | 52 |  |  |  | 11,233 |  |  |  | 2,595 |  |  |  | 7,364 |
Financial liabilities |  |  | (15,710 | ) |  |  | — |  |  |  | (139,524 | ) |  |  | — |  |  |  | — |
Trade and other payables |  |  | (7,086 | ) |  |  | (27,922 | ) |  |  | (10,596 | ) |  |  | (2,605 | ) |  |  | (83 | )
Net assets/(liabilities) |  |  | 215,635 |  |  |  | (27,456 | ) |  |  | (131,263 | ) |  |  | 648 |  |  |  | 7,281 |
|  | 31.12.2020 |
|  | Singapore Dollar |  |  | Euro |  |  | US Dollar |  |  | Renminbi |  |  | Others |
|  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |
Quoted equity securities |  |  | 6,258 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Trade and other receivables |  |  | 620 |  |  |  | 8,624 |  |  |  | 913 |  |  |  | 305 |  |  |  | 372 |
Cash and bank balances |  |  | 181,575 |  |  |  | 3,829 |  |  |  | 45,203 |  |  |  | — |  |  |  | 15,086 |
Financial liabilities |  |  | (1,462 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Trade and other payables |  |  | (6,184 | ) |  |  | (9,356 | ) |  |  | (10,858 | ) |  |  | (2,464 | ) |  |  | — |
Net assets/(liabilities) |  |  | 180,807 |  |  |  | 3,097 |  |  |  | 35,258 |  |  |  | (2,159 | ) |  |  | 15,458 |
US$’000 |  |  | 27,940 |  |  |  | 479 |  |  |  | 5,448 |  |  |  | (334 | ) |  |  | 2,389 |
Foreign currency risk [Member] |
Statement [LineItems] |
Risk Sensitivity Analysis |
|  | Profit before tax |
|  | 31.12.2019 |  |  | 31.12.2020 |  |  | 31.12.2020 |
|  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
Singapore Dollar |  |  | 21,564 |  |  |  | 18,081 |  |  |  | 2,794 |
Euro |  |  | (2,746 | ) |  |  | 310 |  |  |  | 48 |
US Dollar |  |  | (13,126 | ) |  |  | 3,526 |  |  |  | 545 |
Renminbi |  |  | 65 |  |  |  | (216 | ) |  |  | (33 | )
Equity price risk [member] |
Statement [LineItems] |
Risk Sensitivity Analysis | A 10% increase/(decrease) in the underlying prices at the reporting date would increase/(decrease) Group’s profit before tax by the following amount:
|  | 31.12.2019 |  |  | 31.12.2020 |  |  | 31.12.2020 |
|  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
Statement of profit or loss |  |  | 924 |  |  |  | 626 |  |  |  | 97 |

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