| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.6 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.81 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.66 | USD | 20251105 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.74 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.74 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.74 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.68 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.68 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.52 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.79 | USD | 20251104 |