| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1109.81 | USD | 20251204 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1074.46 | USD | 20251204 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1088.6 | USD | 20251204 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1074.46 | USD | 20251204 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1088.28 | USD | 20251203 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1109.48 | USD | 20251203 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1108.85 | USD | 20251202 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1073.54 | USD | 20251202 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1087.66 | USD | 20251202 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1074.07 | USD | 20251201 |