| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.85 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.86 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 841.67 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 785.56 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 785.56 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 841.67 | USD | 20250821 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 841.67 | USD | 20250821 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 841.67 | USD | 20250821 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 679.42 | USD | 20250820 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 812.51 | USD | 20250820 |