| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.67 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.67 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1255.89 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1079.5 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1079.65 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.82 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1284.29 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1107.88 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1256.07 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.82 | USD | 20251110 |