| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.67 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.67 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1104.64 | USD | 20250905 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1125.75 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.74 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.74 | USD | 20250905 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.21 | USD | 20250902 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.41 | USD | 20250902 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.41 | USD | 20250902 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 914.35 | USD | 20250902 |