| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 981.95 | USD | 20250821 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 911.81 | USD | 20250821 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1052.09 | USD | 20250821 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 883.75 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 925.84 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 925.84 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1094.17 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1108.2 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1108.2 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1101.18 | USD | 20250821 |