| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.99 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.99 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.16 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.93 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.99 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.84 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.84 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.01 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251106 |