| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.56 | USD | 20251021 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 232.62 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.31 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 352.46 | USD | 20251021 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 241.08 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.51 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.66 | USD | 20251021 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 352.46 | USD | 20251021 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 408.85 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.48 | USD | 20251021 |