Intangible assets, net

12 Months Ended

Dec. 31, 2022

ZHEJIANG TIANLAN

Intangible assets, net

10. Intangible assets, net

	December 31,
	2022			2021
	RMB’000			RMB’000
Amortizable intangible assets
Gross carrying amount
Patents		3,950			3,750
Others		165			165
		4,115			3,915
Less: Accumulated amortization		(2,307	)		(2,050	)
Net carrying amount		1,808			1,865

	Year ended December 31,
	2022		2021		2020
	RMB’000		RMB’000		RMB’000
Amortization expense		257		255		142

At December 31, 2022, estimated future intangible assets amortization expense for each of the next five years and thereafter was as follows:

	Future amortization expense
	RMB’000
2023		257
2024		257
2025		257
2026		257
2027		257
Thereafter		523
Total		1,808