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Loans and Line of Credit (Tables) | 6 Months Ended
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Jun. 30, 2024
Loans and Line of Credit |
Schedule of bank loans and line of credit | The following table represents short-term bank loans as of June 30, 2024 and December 31, 2023 (in thousands, except interest rate data): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Loan | Interest | ​ | ​ | ​ | ​ | ​ | December 31, | ​ | June 30,
Subsidiary | Bank | ​ | Detail | Rate | ​ | Start Date | ​ | Due Date | ​ | 2023 | ​ | 2024
Tongmei | Bank of China (1) | $ | 1,848 | 3.5 | % | January-23 | ​ | January-24 | $ | 1,795 | $ | -
​ | ​ | ​ | 2,184 | 2.8 | % | March-23 | ​ | March-24 | ​ | 2,118 | ​ | -
​ | ​ | ​ | 376 | 2.7 | % | September-23 | ​ | September-24 | ​ | 386 | ​ | 376
​ | ​ | ​ | 876 | 3.5 | % | November-23 | ​ | November-24 | ​ | 876 | ​ | 855
​ | ​ | ​ | 1,003 | 3.5 | % | November-23 | ​ | November-24 | ​ | 1,003 | ​ | 980
​ | Bank of China (2) | ​ | 2,911 | 3.5 | % | January-23 | ​ | January-24 | ​ | 2,825 | ​ | -
​ | ​ | ​ | 2,770 | 3.0 | % | January-24 | ​ | January-25 | ​ | - | ​ | 2,755
​ | Bank of Communications (1) | ​ | 1,455 | 3.3 | % | January-23 | ​ | January-24 | ​ | 1,414 | ​ | -
​ | ​ | ​ | 1,380 | 3.8 | % | May-23 | ​ | May-24 | ​ | 1,414 | ​ | -
​ | ​ | ​ | 1,373 | 3.8 | % | July-23 | ​ | May-24 | ​ | 1,414 | ​ | -
​ | ​ | ​ | 1,376 | 3.0 | % | May-24 | ​ | May-25 | ​ | - | ​ | 1,376
​ | ​ | ​ | 2,480 | 3.0 | % | June-24 | ​ | May-25 | ​ | - | ​ | 2,480
​ | China Merchants Bank (1) | ​ | 4,367 | 3.7 | % | January-23 | ​ | January-24 | ​ | 4,235 | ​ | -
​ | ​ | ​ | 1,386 | 3.5 | % | January-24 | ​ | January-25 | ​ | - | ​ | 1,376
​ | ​ | ​ | 692 | 3.5 | % | February-24 | ​ | February-25 | ​ | - | ​ | 690
​ | ​ | ​ | 692 | 3.5 | % | April-24 | ​ | April-25 | ​ | - | ​ | 690
​ | Bank of Beijing (3) | ​ | 2,290 | 4.2 | % | January-23 | ​ | January-24 | ​ | 2,220 | ​ | -
​ | ​ | ​ | 3,541 | 3.2 | % | June-23 | ​ | May-24 | ​ | 3,626 | ​ | -
​ | ​ | ​ | 1,380 | 3.2 | % | June-23 | ​ | February-24 | ​ | 1,414 | ​ | -
​ | ​ | ​ | 1,414 | 3.0 | % | December-23 | ​ | December-24 | ​ | 1,414 | ​ | 1,376
​ | ​ | ​ | 3,600 | 3.0 | % | March-24 | ​ | February-25 | ​ | - | ​ | 3,577
​ | ​ | ​ | 1,386 | 3.0 | % | March-24 | ​ | December-24 | ​ | - | ​ | 1,376
​ | ​ | ​ | 3,580 | 3.0 | % | June-24 | ​ | June-25 | ​ | - | ​ | 3,577
​ | Industrial Bank (1) | ​ | 2,757 | 4.3 | % | June-23 | ​ | June-24 | ​ | 2,825 | ​ | -
​ | ​ | ​ | 2,744 | 4.3 | % | July-23 | ​ | July-24 | ​ | 2,825 | ​ | 2,752
​ | ​ | ​ | 2,744 | 4.3 | % | September-23 | ​ | September-24 | ​ | 2,825 | ​ | 2,752
​ | NingBo Bank (1) | ​ | 2,744 | 4.2 | % | August-23 | ​ | September-24 | ​ | 2,820 | ​ | 2,746
​ | ​ | ​ | 1,271 | 4.3 | % | November-23 | ​ | November-24 | ​ | 1,271 | ​ | 1,238
​ | ​ | ​ | 2,825 | 4.3 | % | December-23 | ​ | December-24 | ​ | 2,825 | ​ | 2,752
​ | ​ | ​ | 1,647 | 4.3 | % | January-24 | ​ | January-25 | ​ | - | ​ | 1,637
​ | ​ | ​ | 1,258 | 4.3 | % | May-24 | ​ | March-25 | ​ | - | ​ | 1,258
​ | Industrial and Commercial Bank of China (1) | ​ | 2,744 | 3.3 | % | September-23 | ​ | September-24 | ​ | 2,825 | ​ | 2,752
​ | NanJing Bank (1) | ​ | 2,752 | 3.8 | % | October-23 | ​ | October-24 | ​ | 2,752 | ​ | 2,683
​ | China Citic Bank (1) | ​ | 2,752 | 3.0 | % | June-24 | ​ | June-25 | ​ | - | ​ | 2,752
BoYu | Industrial and Commercial Bank of China (4) | ​ | 1,414 | 2.7 | % | December-23 | ​ | December-24 | ​ | 1,414 | ​ | 1,376
​ | Bank of China (1) | ​ | 1,204 | 2.4 | % | January-23 | ​ | January-24 | ​ | 849 | ​ | -
​ | NingBo Bank (1) | ​ | 1,414 | 3.3 | % | November-23 | ​ | May-24 | ​ | 1,414 | ​ | -
​ | ​ | ​ | 1,376 | 3.0 | % | May-24 | ​ | November-24 | ​ | - | ​ | 1,376
​ | Industrial Bank (1) | ​ | 688 | 3.6 | % | September-23 | ​ | September-24 | ​ | 708 | ​ | 690
​ | Bank of Communications (1) | ​ | 1,414 | 3.0 | % | November-23 | ​ | May-24 | ​ | 1,414 | ​ | -
​ | ​ | ​ | 275 | 3.0 | ​ | May-24 | ​ | May-25 | ​ | - | ​ | 275
​ | NanJing Bank (1) | ​ | 1,386 | 3.5 | % | January-24 | ​ | January-25 | ​ | - | ​ | 1,376
​ | Loan Balance | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 52,921 | $ | 49,899
​ Collateral for the above bank loans and line of credit
| (1) | Not collateralized.
| (2) | ChaoYang LiMei time deposit.
| (3) | AXT time deposit.
| (4) | BoYu’s land use rights and its building located at its facility in Tianjin, China. In addition, the December 2023 loan attracts a guarantee fee amounting to 0.7% of the loan amount.
Schedule of maturities of long-term loan | As of June 30, 2024, the maturities of our long-term loan liabilities in five years (excluding short-term loans) are as follows (in thousands): ​
​ | ​ | ​
Maturity of long term loans |  | ​
2025 | $ | 894
2026 | ​ | 1,307
2027 | ​ | 963
2028 | ​ | 1,238
2029 | ​ | 2,357

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