| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1291.35 | USD | 20251028 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1199.62 | USD | 20251028 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1368.97 | USD | 20251028 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1368.49 | USD | 20251027 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1290.04 | USD | 20251024 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1290.22 | USD | 20251023 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1367.78 | USD | 20251023 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1198.57 | USD | 20251023 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1367.08 | USD | 20251022 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1268.43 | USD | 20251022 |