| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 678.42 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 710.92 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.65 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 768.65 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 768.65 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.74 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.65 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 710.72 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.74 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 710.81 | USD | 20251208 |