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owners' equity (Tables) | 6 Months Ended
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Jun. 30, 2026
Subsidiaries with significant non-controlling interests |
Schedule of authorized share capital | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
As at | ​ ​ ​ | 2026 | ​ ​ ​ | 2025
First Preferred Shares |  | 1 | billion | ​ | 1 | billion
Second Preferred Shares |  | 1 | billion | ​ | 1 | billion
Common Shares |  | 4 | billion | ​ | 4 | billion
Telus International (Cda) Inc. |
Subsidiaries with significant non-controlling interests |
Schedule of summarized financial information of Subsidiary | ​
​ | ​ | ​ | ​
For the periods ended June 30, 2025 (millions) | ​ | ​ | ​
Statement of income and other comprehensive income 1,2 |  | ​ | ​
THREE-MONTH | ​ | ​ | ​
Revenue and other income | ​ | $ | 966
Net income (loss) | ​ | $ | (376)
Comprehensive income (loss) | ​ | $ | (504)
Net income (loss) allocated to non-controlling interest | ​ | $ | (252)
Other comprehensive income allocated to non-controlling interest | ​ | $ | (54)
Comprehensive income (loss) allocated to non-controlling interest | ​ | $ | (306)
SIX-MONTH | ​ | ​ | ​
Revenue and other income | ​ | $ | 1,928
Net income (loss) | ​ | $ | (411)
Comprehensive income (loss) | ​ | $ | (516)
Net income (loss) allocated to non-controlling interest | ​ | $ | (272)
Other comprehensive income allocated to non-controlling interest | ​ | $ | (45)
Comprehensive income (loss) allocated to non-controlling interest | ​ | $ | (317)
Statement of cash flows 1,2 | ​ | ​ | ​
THREE-MONTH | ​ | ​ | ​
Cash provided by operating activities | ​ | $ | 43
Cash used by investing activities | ​ | $ | (43)
Cash provided by financing activities | ​ | $ | 8
SIX-MONTH | ​ | ​ | ​
Cash provided by operating activities | ​ | $ | 102
Cash used by investing activities | ​ | $ | (82)
Cash used by financing activities | ​ | $ | (68)
​
1 | As required by IFRS Accounting Standards, this summarized financial information excludes inter-company eliminations.
2 | Amounts for periods in the year ended December 31, 2025, are prior to privatization on October 31, 2025.
Terrion wireless tower infrastructure |
Subsidiaries with significant non-controlling interests |
Schedule of summarized financial information of Subsidiary | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
As at, or for the periods 1 ended, (millions) | ​ ​ ​ | June 30, 2026 | ​ ​ ​ | December 31, 2025
Statement of financial position 2 |  | ​ | ​ |  | ​ | ​
Current assets | ​ | $ | 55 | ​ | $ | 33
Non-current assets | ​ | $ | 776 | ​ | $ | 658
Current liabilities | ​ | $ | 47 | ​ | $ | 37
Non-current liabilities | ​ | $ | 420 | ​ | $ | 314
Accumulated non-controlling interest in Terrion in Consolidated statement of changes in owners’ equity | ​ | $ | 801 | ​ | $ | 799
Statement of income and other comprehensive income 2 | ​ |  | ​ | ​ |  | ​
THREE-MONTH | ​ |  | ​ | ​ |  | ​
Revenue and other income | ​ | $ | 46 | ​ |  | ​
Net income 3 | ​ | $ | 16 | ​ |  | ​
Comprehensive income 3 | ​ | $ | 16 | ​ |  | ​
Net income and comprehensive income allocated to non-controlling interest | ​ | $ | 8 | ​ |  | ​
SIX-MONTH | ​ |  | ​ | ​ |  | ​
Revenue and other income | ​ | $ | 92 | ​ |  | ​
Net income 3 | ​ | $ | 32 | ​ |  | ​
Comprehensive income 3 | ​ | $ | 32 | ​ |  | ​
Net income and comprehensive income allocated to non-controlling interest | ​ | $ | 16 | ​ |  | ​
Statement of cash flows 1 | ​ |  | ​ | ​ |  | ​
THREE-MONTH | ​ |  | ​ | ​ |  | ​
Cash provided by operating activities | ​ | $ | 36 | ​ |  | ​
Cash used by investing activities 4 | ​ | $ | (23) | ​ |  | ​
Cash used by financing activities | ​ | $ | (12) | ​ |  | ​
Partnership distributions to non-controlling interest (included as a use of cash in financing activities) | ​ | $ | 9 | ​ |  | ​
SIX-MONTH | ​ |  | ​ | ​ |  | ​
Cash provided by operating activities | ​ | $ | 69 | ​ |  | ​
Cash used by investing activities 4 | ​ | $ | (33) | ​ |  | ​
Cash used by financing activities | ​ | $ | (28) | ​ |  | ​
Partnership distributions to non-controlling interest (included as a use of cash in financing activities) | ​ | $ | 14 | ​ |  | ​
​
1 | Amounts for periods in the year ended December 31, 2025, are for the 160-day period from the date of establishment, July 24, 2025, through December 31, 2025, inclusive.
2 | As required by IFRS Accounting Standards, this summarized financial information excludes inter-company eliminations.
3 | As Terrion is a partnership, no provision is made for income taxes in respect of the partners in determining Terrion’s net income and comprehensive income.
4 | For the three-month period ended June 30, 2026, Includes additions (excluding additions from leases) to property, plant and equipment of $19 and change in associated non-cash investing working capital of $(4). For the six-month period ended June 30, 2026, Includes additions (excluding additions from leases) to property, plant and equipment of $28 and change in associated non-cash investing working capital of $(9).

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