| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1031.38 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1031.13 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1029.98 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1029.55 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1030.03 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1030.26 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1030.84 | USD | 20251117 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1030.71 | USD | 20251114 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1030.59 | USD | 20251112 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1030.11 | USD | 20251111 |