| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.58 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 713.49 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.68 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.68 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.58 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 770.0 | USD | 20251127 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.5 | USD | 20251126 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 713.32 | USD | 20251126 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.5 | USD | 20251126 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 768.4 | USD | 20251126 |