| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.6 | USD | 20251201 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.6 | USD | 20251201 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.12 | USD | 20251128 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.12 | USD | 20251128 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.28 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.28 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.01 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.01 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.75 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.75 | USD | 20251121 |