| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.83 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 847.06 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.53 | USD | 20251112 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 903.11 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 938.39 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.67 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.45 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 910.17 | USD | 20251111 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 846.79 | USD | 20251110 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 945.58 | USD | 20251110 |