| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1188.01 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1121.69 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1093.47 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1187.5 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1093.01 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1121.22 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1188.06 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1121.74 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1093.52 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1093.77 | USD | 20251118 |