| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.34 | USD | 20251011 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.34 | USD | 20251011 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.34 | USD | 20251010 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.34 | USD | 20251010 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1188.43 | USD | 20251009 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1188.43 | USD | 20251009 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.22 | USD | 20250930 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.22 | USD | 20250930 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1187.6 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1187.6 | USD | 20250928 |