| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250927 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250927 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250926 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1068.14 | USD | 20250926 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1068.14 | USD | 20250926 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 956.98 | USD | 20250925 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1069.56 | USD | 20250925 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1069.56 | USD | 20250925 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1097.71 | USD | 20250924 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 956.98 | USD | 20250924 |