| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1127.9 | USD | 20251024 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1244.92 | USD | 20251024 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1156.26 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.1 | USD | 20251023 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.07 | USD | 20251023 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1128.06 | USD | 20251023 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1128.06 | USD | 20251023 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1197.96 | USD | 20251022 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1268.43 | USD | 20251022 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1127.49 | USD | 20251022 |