| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.23 | USD | 20251031 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1086.34 | USD | 20251031 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.48 | USD | 20251030 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.48 | USD | 20251030 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1086.59 | USD | 20251030 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 931.36 | USD | 20251030 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 931.64 | USD | 20251029 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 931.64 | USD | 20251029 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1086.91 | USD | 20251029 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1072.79 | USD | 20251029 |