| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1130.37 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.72 | USD | 20251209 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1095.05 | USD | 20251209 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1182.65 | USD | 20251209 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1102.12 | USD | 20251209 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1102.12 | USD | 20251209 |
| Hangjin Technology Co., Ltd. | China national standards | MT | 1087.99 | USD | 20251209 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1102.12 | USD | 20251209 |
| Shandong Jinling Group Co., Ltd. | China national standards | MT | 1073.86 | USD | 20251209 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1102.12 | USD | 20251209 |