| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 789.03 | USD | 20251020 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 752.4 | USD | 20251020 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 711.54 | USD | 20251020 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 704.49 | USD | 20251020 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 732.67 | USD | 20251020 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 831.3 | USD | 20251020 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 690.64 | USD | 20251018 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 676.54 | USD | 20251018 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 704.73 | USD | 20251018 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 732.92 | USD | 20251018 |