| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1087.99 | USD | 20251209 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1088.12 | USD | 20251208 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1088.12 | USD | 20251208 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1109.32 | USD | 20251208 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1088.35 | USD | 20251207 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1109.56 | USD | 20251207 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1109.56 | USD | 20251206 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1109.56 | USD | 20251205 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1074.22 | USD | 20251205 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1088.35 | USD | 20251205 |