| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 973.65 | USD | 20251103 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.77 | USD | 20251103 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.77 | USD | 20251103 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.77 | USD | 20251103 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 973.48 | USD | 20251101 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.58 | USD | 20251101 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.58 | USD | 20251101 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.58 | USD | 20251101 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.58 | USD | 20251031 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 987.58 | USD | 20251031 |