| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1101.14 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1101.14 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1079.96 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1256.42 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1284.66 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1108.19 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1284.13 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1255.91 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.68 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1079.52 | USD | 20251106 |