| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 768.43 | USD | 20251202 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 703.45 | USD | 20251202 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.53 | USD | 20251202 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.82 | USD | 20251201 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 706.62 | USD | 20251201 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.89 | USD | 20251201 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 768.81 | USD | 20251201 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.89 | USD | 20251201 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 678.36 | USD | 20251201 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 703.8 | USD | 20251201 |