v3.25.1
Intangible assets, net (Details) - ZHEJIANG TIANLAN - CNY (¥)
¥ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Patents ¥ 4,150 ¥ 4,150
Others 165 165
Intangible assets gross 4,315 4,315
Less: Accumulated amortization (2,787) (2,552)
Net carrying amount ¥ 1,528 ¥ 1,763