| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1101.31 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1256.62 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1080.13 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1101.31 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1108.37 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1284.86 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1255.91 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1107.74 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.68 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.68 | USD | 20251113 |