| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.87 | USD | 20251208 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1190.12 | USD | 20251205 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1095.42 | USD | 20251205 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1190.39 | USD | 20251204 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1095.67 | USD | 20251204 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1095.34 | USD | 20251203 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1190.04 | USD | 20251203 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.37 | USD | 20251202 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1094.73 | USD | 20251202 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.95 | USD | 20251201 |