| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 767.9 | USD | 20251020 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 767.9 | USD | 20251020 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 767.9 | USD | 20251020 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 767.9 | USD | 20251020 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1282.18 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| Derun Chemical Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |