| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.64 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.7 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.93 | USD | 20251114 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.13 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.68 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.4 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.18 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.46 | USD | 20251113 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.06 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.83 | USD | 20251112 |