| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.73 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1174.36 | USD | 20251124 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1213.88 | USD | 20251124 |
| Wudi Xinyue Chemical Group Co., Ltd. | China national standards | MT | 1115.08 | USD | 20251124 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1178.6 | USD | 20251124 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1115.08 | USD | 20251124 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1143.31 | USD | 20251124 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1079.79 | USD | 20251124 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1072.73 | USD | 20251124 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1115.08 | USD | 20251124 |