| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 706.88 | USD | 20251204 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 678.61 | USD | 20251204 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 769.09 | USD | 20251204 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 711.12 | USD | 20251204 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 703.85 | USD | 20251203 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.94 | USD | 20251203 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.94 | USD | 20251203 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.53 | USD | 20251202 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.53 | USD | 20251202 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 703.45 | USD | 20251202 |