| Schedule of accrued warranty activities |
| | | | | | | | | For the six months ended on June 30, | | | 2024 | | 2025 | | 2025 | | | VND million | | VND million | | USD | Accrued warranty at beginning of the period | | 2,402,151 | | 5,629,435 | | 224,710,003 | Changes in the liability for accruals related to pre-existing warranty (including adjustments related to changes in estimates) | | (67,682) | | 519,380 | | 20,732,077 | Provision for warranty | | 936,028 | | 3,505,048 | | 139,910,905 | Utilized | | (244,395) | | (915,282) | | (36,535,287) | Accrued warranty at the end of the period | | 3,026,102 | | 8,738,581 | | 348,817,699 | Including: Accrued warranty, current | | 907,064 | | 4,162,913 | | 166,170,885 | Accrued warranty, non-current | | 2,119,038 | | 4,575,668 | | 182,646,815 |
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