| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.84 | USD | 20251121 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.27 | USD | 20251120 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.3 | USD | 20251120 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1156.48 | USD | 20251120 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1128.27 | USD | 20251120 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.33 | USD | 20251120 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.91 | USD | 20251119 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.8 | USD | 20251119 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.9 | USD | 20251119 |