| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.5 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.13 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 921.47 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 921.0 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.67 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.87 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 921.21 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 921.44 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.1 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 921.28 | USD | 20251101 |