| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.84 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.62 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.89 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.84 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.84 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.01 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.78 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.73 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 381.18 | USD | 20251112 |