6. INVENTORIES, NET

Inventories, net consisted of the following:

During the years ended December 31, 2025, 2024, and 2023, the Group recognized inventory write-downs of US$0.1 million, US$0.9 million and US$16.1, respectively, within cost of revenues. The write-down in 2025 and 2024 was primarily due to the estimated net realizable value of the related inventories falling below their carrying cost.

During the years ended December 31, 2025, 2024, and 2023, the Group recognized inventory write-off of US$0.4 million, nil, and nil, respectively, within other income (expenses), net.