| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1484.12 | USD | 20251205 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2049.5 | USD | 20251205 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2049.5 | USD | 20251205 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1766.81 | USD | 20251205 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1639.6 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1455.85 | USD | 20251205 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1554.79 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1455.85 | USD | 20251205 |
| Shandong Longhui Chemical Co., Ltd. | China national standards | MT | 1950.56 | USD | 20251205 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2049.96 | USD | 20251204 |