| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 394.1 | USD | 20251011 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 351.87 | USD | 20251011 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 365.95 | USD | 20251011 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.25 | USD | 20251011 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.25 | USD | 20251011 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.25 | USD | 20251011 |
| China national standards | MT | 422.25 | USD | 20251011 | |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.1 | USD | 20251011 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 394.1 | USD | 20251010 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 422.25 | USD | 20251010 |