| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1241.96 | USD | 20251118 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1143.16 | USD | 20251118 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1143.16 | USD | 20251118 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1058.48 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1213.73 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.21 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1178.45 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1213.73 | USD | 20251118 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1199.62 | USD | 20251118 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 987.92 | USD | 20251118 |