| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 890.48 | USD | 20251020 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1197.64 | USD | 20251020 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1296.27 | USD | 20251020 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 897.52 | USD | 20251020 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 986.29 | USD | 20251020 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 890.48 | USD | 20251020 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1042.65 | USD | 20251020 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1244.14 | USD | 20251020 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 890.48 | USD | 20251020 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 986.29 | USD | 20251020 |