| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.95 | USD | 20250822 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1023.54 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 403.81 | USD | 20250822 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 448.68 | USD | 20250822 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1037.56 | USD | 20250822 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 631.25 | USD | 20250821 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 631.25 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1024.03 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1024.03 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 404.0 | USD | 20250821 |