| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 401.7 | USD | 20251017 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.84 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.65 | USD | 20251017 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.84 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 387.6 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.37 | USD | 20251017 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.03 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.46 | USD | 20251017 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 366.46 | USD | 20251017 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 394.65 | USD | 20251017 |