| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1130.68 | USD | 20251203 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1247.99 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1158.95 | USD | 20251203 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1272.01 | USD | 20251203 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1158.29 | USD | 20251202 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1271.29 | USD | 20251202 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1130.04 | USD | 20251202 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1247.28 | USD | 20251202 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1130.04 | USD | 20251202 |