| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 909.92 | USD | 20251104 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.58 | USD | 20251104 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.58 | USD | 20251104 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 767.64 | USD | 20251103 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.77 | USD | 20251103 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.6 | USD | 20251103 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.77 | USD | 20251103 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.55 | USD | 20251103 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.47 | USD | 20251102 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.47 | USD | 20251101 |