| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.06 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.81 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 927.18 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 920.13 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 919.78 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 926.83 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.47 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.14 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 926.49 | USD | 20251014 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 919.45 | USD | 20251014 |