| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1368.41 | USD | 20251104 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1291.15 | USD | 20251103 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1368.76 | USD | 20251103 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1368.51 | USD | 20251101 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1290.91 | USD | 20251101 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1368.51 | USD | 20251031 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 991.82 | USD | 20251031 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1290.91 | USD | 20251031 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1269.75 | USD | 20251031 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1199.21 | USD | 20251031 |