| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.87 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.19 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.44 | USD | 20251104 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.66 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.43 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.38 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.16 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.1 | USD | 20251103 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.21 | USD | 20251101 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 902.93 | USD | 20251101 |