| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.36 | USD | 20251119 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.36 | USD | 20251119 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.6 | USD | 20251118 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.6 | USD | 20251118 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1086.71 | USD | 20251118 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 973.81 | USD | 20251118 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1087.32 | USD | 20251117 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1087.19 | USD | 20251116 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1087.19 | USD | 20251115 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 974.23 | USD | 20251115 |