| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 711.99 | USD | 20251024 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 747.24 | USD | 20251024 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.14 | USD | 20251024 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 785.41 | USD | 20251023 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 705.04 | USD | 20251023 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 747.34 | USD | 20251023 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.09 | USD | 20251023 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.24 | USD | 20251023 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 831.95 | USD | 20251023 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 711.73 | USD | 20251022 |