Expenses by nature

12 Months Ended

Dec. 31, 2025

Analysis of income and expense [abstract]

Expenses by nature

Note 6 - Expenses by nature

The following table illustrates the Group's expenses for major functions by nature:


			For the year ended December 31, 2025
			Cost of sales			Selling, general and administrative expense			Research and development expense			Total
Inventory costs			2,914,511			—			—			2,914,511
Impairment of property, plant and equipment, vehicles under operating leases, and intangible assets			1,049,851			—			—			1,049,851
Advertising, selling, and promotion costs			—			245,673			—			245,673
Professional services and consultant costs			—			199,548			29,219			228,767
Employee benefit costs			5,396			204,883			13,744			224,023
Warranties and costs associated with settling contract liabilities			148,700			—			—			148,700
Sales agent costs			—			123,385			—			123,385
Depreciation and amortization expense			17,633			23,397			11,694			52,724
Derecognition of IP assets			—			—			23,080			23,080
Maintenance and insurance service costs			—			19,212			—			19,212
Other costs			5,928			40,360			(101)			46,187
Total			4,142,019			856,458			77,636			5,076,113


			For the year ended December 31, 2024
			Cost of sales			Selling, general and administrative expense			Research and development expense			Total
Inventory costs			2,202,061			—			—			2,202,061
Impairment of property, plant and equipment, vehicles under operating leases, and intangible assets			622,092			—			—			622,092
Advertising, selling, and promotion costs			—			301,199			—			301,199
Professional services and consultant costs			—			256,683			26,714			283,397
Employee benefit costs			7,983			198,053			3,112			209,148
Warranties and costs associated with settling contract liabilities			68,264			951			—			69,215
Sales agent costs			—			58,009			—			58,009
Depreciation and amortization expense			13,006			32,864			9,849			55,719
Maintenance and insurance service costs			—			17,910			—			17,910

Other costs			(2,978)			25,034			(1,325)			20,731
Total			2,910,428			890,703			38,350			3,839,481


			For the year ended December 31, 2023
			Cost of sales			Selling, general and administrative expense			Research and development expense			Total
Inventory costs			2,330,807			(410)			—			2,330,397
Advertising, selling, and promotion costs			—			236,675			16,058			252,733
Impairment of property, plant and equipment, vehicles under operating leases, and intangible assets			339,592			(24)			—			339,568
Professional services and consultant costs			—			380,230			10,733			390,963
Employee benefit costs			43,207			191,922			527			235,656
Depreciation and amortization expense			16,019			24,315			75,111			115,445
Warranties and costs associated with settling contract liabilities			89,922			1,626			—			91,548
Sales agent costs			—			53,570			—			53,570
Maintenance and insurance service costs			—			21,844			—			21,844

Other costs			(41,325)			34,429			54,851			47,955
Total			2,778,222			944,177			157,280			3,879,679