Exhibit 99.1
XORTX THERAPEUTICS INC.
PRO-FORMA INTERIM INTERIM BALANCE SHEET
as at September 30, 2025 and October 16, 2025
| June 30, 2025 | September 30, 2025 | Post Q3 2025 | October 16, 2025 | December 31, 2024 | ||||||||||||||||
| $ | $ | $ | $ | $ | ||||||||||||||||
| Assets | ||||||||||||||||||||
| Current | ||||||||||||||||||||
| Cash | 1,063,477 | 1,193,915 | 1,193,915 | 2,473,649 | ||||||||||||||||
| Accounts receivable | 10,860 | 22,092 | 22,092 | 17,637 | ||||||||||||||||
| Prepaid expenses | 97,589 | 30,444 | 30,444 | 185,412 | ||||||||||||||||
| Deferred share issuance costs | 92,594 | 111,028 | 111,028 | - | ||||||||||||||||
| Total Current Assets | 1,264,520 | 1,357,479 | - | 1,357,479 | 2,676,698 | |||||||||||||||
| Non-current | ||||||||||||||||||||
| Contract payments | 1,200,000 | 1,200,000 | 1,200,000 | 1,200,000 | ||||||||||||||||
| Acquired assets | 3,250,000 | 3,250,000 | ||||||||||||||||||
| Intangible assets | 195,008 | 193,997 | 193,997 | 183,108 | ||||||||||||||||
| Property and equipment | 82,490 | 59,602 | 59,602 | 34,721 | ||||||||||||||||
| Total Assets | 2,742,018 | 2,811,078 | 3,250,000 | 6,061,078 | 4,094,527 | |||||||||||||||
| Liabilities | ||||||||||||||||||||
| Current | ||||||||||||||||||||
| Accounts payable and accrued liabilities | 453,982 | 677,314 | 150,000 | 827,314 | 147,205 | |||||||||||||||
| Derivative warrant liability | 177,000 | 101,000 | 101,000 | 572,000 | ||||||||||||||||
| Lease obligation | 80,473 | 59,094 | 59,094 | 38,785 | ||||||||||||||||
| Total Liabilities | 711,455 | 837,408 | 150,000 | 987,408 | 757,990 | |||||||||||||||
| Shareholders’ Equity | ||||||||||||||||||||
| Share capital | 18,912,699 | 19,488,598 | 19,488,598 | 18,493,571 | ||||||||||||||||
| Reserves | 5,730,349 | 5,747,026 | 3,100,000 | 8,847,026 | 6,039,078 | |||||||||||||||
| Obligation to issue shares | 24,746 | 24,746 | 24,746 | 24,746 | ||||||||||||||||
| Accumulated other comprehensive loss | (52,605 | ) | (52,605 | ) | (52,605 | ) | (52,605 | ) | ||||||||||||
| Accumulated deficit | (22,584,626 | ) | (23,234,095 | ) | (23,234,095 | ) | (21,168,253 | ) | ||||||||||||
| Total Shareholders’ Equity | 2,030,563 | 1,973,670 | 3,100,000 | 5,073,670 | 3,336,537 | |||||||||||||||
| Total Liabilities and Shareholders’ Equity | 2,742,018 | 2,811,078 | 3,250,000 | 6,061,078 | 4,094,527 |