| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1142.78 | USD | 20251031 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 888.83 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1142.78 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 987.58 | USD | 20251031 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 881.77 | USD | 20251031 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 790.25 | USD | 20251030 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.47 | USD | 20251030 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 987.81 | USD | 20251030 |