| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.89 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.06 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.06 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.3 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 388.24 | 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 | 388.06 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.89 | USD | 20251111 |