| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1173.54 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1194.63 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1208.68 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1208.68 | USD | 20250926 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250926 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1011.92 | USD | 20250926 |
| Wudi Xinyue Chemical Group Co., Ltd. | China national standards | MT | 983.81 | USD | 20250926 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1176.35 | USD | 20250926 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1201.65 | USD | 20250926 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1201.65 | USD | 20250926 |