| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 735.65 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 769.6 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 711.6 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 735.65 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 834.68 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 710.92 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 678.42 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.89 | USD | 20251210 |