| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 746.96 | USD | 20251022 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 909.04 | USD | 20251022 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 711.73 | USD | 20251022 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 732.87 | USD | 20251022 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 831.52 | USD | 20251022 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 831.52 | USD | 20251022 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 711.97 | USD | 20251021 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 785.28 | USD | 20251021 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 752.85 | USD | 20251021 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.12 | USD | 20251021 |