| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 973.41 | USD | 20251104 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.09 | USD | 20251104 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.09 | USD | 20251104 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 888.76 | USD | 20251104 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1114.48 | USD | 20251104 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 729.35 | USD | 20251104 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 916.98 | USD | 20251104 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 729.35 | USD | 20251104 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 818.23 | USD | 20251104 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 785.78 | USD | 20251104 |