| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 678.31 | USD | 20251208 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 768.75 | USD | 20251208 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 911.48 | USD | 20251208 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 710.81 | USD | 20251208 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.42 | USD | 20251208 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.84 | USD | 20251208 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.76 | USD | 20251208 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 710.96 | USD | 20251207 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 710.96 | USD | 20251206 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 678.45 | USD | 20251205 |