| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1159.03 | USD | 20251205 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1248.07 | USD | 20251205 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1272.1 | USD | 20251205 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1159.29 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1248.36 | USD | 20251204 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1272.39 | USD | 20251204 |