| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.62 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.98 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.92 | USD | 20251125 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.41 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.7 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.64 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.9 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.36 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.33 | USD | 20251121 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.05 | USD | 20251121 |