| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1294.46 | USD | 20250901 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 970.85 | USD | 20250901 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1006.62 | USD | 20250831 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1006.62 | USD | 20250830 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 985.5 | USD | 20250830 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 985.5 | USD | 20250830 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 985.5 | USD | 20250830 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 985.5 | USD | 20250830 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 985.5 | USD | 20250830 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 971.42 | USD | 20250830 |