| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 915.4 | USD | 20251013 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 914.87 | USD | 20251011 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 928.95 | USD | 20251010 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 970.44 | USD | 20251009 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250928 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250927 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250926 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250925 |