| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 593.47 | USD | 20251211 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.91 | USD | 20251210 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.74 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.82 | USD | 20251208 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.94 | USD | 20251205 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 593.08 | USD | 20251204 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.9 | USD | 20251203 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.56 | USD | 20251202 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.86 | USD | 20251201 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.61 | USD | 20251128 |