| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.89 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.0 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.83 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.83 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.72 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.94 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.88 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.77 | USD | 20251110 |