| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.37 | USD | 20250922 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 302.37 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.62 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.62 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.62 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.59 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.71 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.59 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.49 | USD | 20250922 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.65 | USD | 20250922 |