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Pledged assets | 12 Months Ended
--- | ---
Dec. 31, 2020
Pledged assets |
Pledged assets | Note 27. Pledged assets
|  |  |  | December 31, |  | December 31,
Pledged assets |  | Pledged to secure |  | 2019 |  | 2020
|  |  |  | (in thousands)
Restricted cash and time deposit (1) |  | Short-term secured borrowings |  | $ | 164,000 |  | 104,000
Restricted time deposits (1) |  | For customs duties |  |  | 133 |  | 141
Land (2) |  | Long-term unsecured borrowings |  |  | - |  | 27,500
Building and improvements (2) |  | Long-term unsecured borrowings |  |  | - |  | 43,616
|  |  |  | $ | 164,133 |  | 175,257
Note (1): The pledged assets are booked as restricted deposits and classified as current or noncurrent by its liquidity. Note (2): Guarantee and collateral for long-term unsecured borrowings.

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