| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2204.04 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2203.51 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2201.06 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2200.13 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2201.15 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2201.65 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2201.65 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2202.89 | USD | 20251117 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2202.61 | USD | 20251114 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 2202.36 | USD | 20251112 |