| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.72 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 931.75 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.76 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 840.68 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 841.08 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.2 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.15 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.2 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.03 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.99 | USD | 20250813 |