| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 690.19 | USD | 20251015 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 732.45 | USD | 20251015 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 831.04 | USD | 20251015 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 732.18 | USD | 20251014 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 830.74 | USD | 20251014 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 830.74 | USD | 20251014 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 801.17 | USD | 20251014 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 689.94 | USD | 20251014 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 865.94 | USD | 20251014 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 764.56 | USD | 20251014 |