| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.14 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.05 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.17 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.01 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.89 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.05 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.05 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.01 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.09 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.97 | USD | 20251014 |