| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 406.32 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 402.09 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 406.32 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 451.47 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 451.47 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 451.57 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 402.18 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 406.41 | USD | 20251030 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 402.3 | USD | 20251029 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 406.53 | USD | 20251029 |