| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.15 | USD | 20251101 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 729.4 | USD | 20251101 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.15 | USD | 20251101 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 757.62 | USD | 20251101 |
| Hunan Yuanshuo Fine Chemical Co., Ltd. | China national standards | MT | 902.93 | USD | 20251101 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 917.04 | USD | 20251101 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 917.04 | USD | 20251101 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 729.4 | USD | 20251101 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 729.4 | USD | 20251101 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.18 | USD | 20251101 |