| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.68 | USD | 20250913 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1140.54 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1056.06 | USD | 20250912 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.52 | USD | 20250912 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.64 | USD | 20250909 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 880.18 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1140.72 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.8 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1056.22 | USD | 20250909 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 887.22 | USD | 20250909 |