| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1179.98 | USD | 20251208 |
| Shandong Jinling Group Co., Ltd. | China national standards | MT | 1073.99 | USD | 20251208 |
| Dongying Huatai Chemical Group Co., Ltd. | China national standards | MT | 1257.7 | USD | 20251208 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.12 | USD | 20251208 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1215.31 | USD | 20251208 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.12 | USD | 20251208 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1257.7 | USD | 20251208 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1130.52 | USD | 20251208 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1102.26 | USD | 20251208 |