| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.06 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.24 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.06 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1185.35 | USD | 20251106 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.65 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.47 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1184.75 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.47 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.47 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.91 | USD | 20251104 |