| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.57 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 380.72 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.57 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.57 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 345.47 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.62 | USD | 20251023 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.51 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.51 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 331.31 | USD | 20251021 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 359.51 | USD | 20251021 |