| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.06 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.77 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.0 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.0 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.18 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.88 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 360.0 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.94 | USD | 20251112 |
| 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 |