| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 967.46 | USD | 20250822 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 981.95 | USD | 20250821 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 981.95 | USD | 20250821 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 981.95 | USD | 20250821 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 967.92 | USD | 20250821 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.61 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 966.6 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.61 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.61 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.96 | USD | 20250819 |