| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 332.46 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 332.46 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 346.6 | USD | 20251211 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 346.6 | USD | 20251211 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 339.53 | USD | 20251211 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 297.09 | USD | 20251211 |